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"The first night using this my 4-month-old went from sleeping 3 hours to a full 8!" -Lauren M.
Read more ReviewsZen Sack™ Classic
Zen Sack™ Classic
Nested Bean
ZKC200-S
019962688935
43060269809849
$ 49.99
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Trusted by over 2 million parents
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Safely weighted to mimic your touch
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Uninterrupted comfort
Our weighted sleep sack is Scientifically designed for self-soothing and sounder sleep. The gently weighted Zen Sack Classic calms like your embrace by providing comforting pressure only where babies are naturally held. This secure feeling eases the swaddle transition and helps babies self-soothe through sleep disruptions, leading to deeper periods of sleep that are essential for healthy development
The gently weighted Zen Sleep Sack helps your baby sleep through every sleep phase. Designed to help babies self-soothe and fall asleep independently, the Zen Sack eases the transition from swaddle to sack, and prevents sleep regressions and disruptions: An essential for sleep training.
▪ Two-way zipper makes diaper changes a breeze
▪ Zipper covers, cuddly seams and soft tags protect your baby’s skin
▪ Can be worn backwards by tummy sleepers who can roll independently
▪ Grow-with me adjustable snaps
▪ 0.5 TOG comforts in all weathers
Sizes from 0 to 24 months
Fabric details:
▪ 100% breathable cotton
Care details:
▪ Wash in cold water on delicate cycle
▪ Tumble dry on low heat
The center weight mimics your reassuring palm and calms with only a few ounces
▪ The safe alternative to all-weighted sleepwear
▪ Applies gentle pressure that is tested for breathing safety
▪ Passes mandatory and voluntary children's product tests
▪ Tested for suffocation hazard, pulmonologist verified
▪ Hip-healthy. Does not hinder mobility
Frequently Bought
Zen Sack™ Premier
$ 54.99
Zen Sack® Quilted
$ 59.99
Related Products
About this item
The imported Zen Sack is machine washable, made from 100% breathable cotton, and scientifically designed for self-soothing and sounder sleep.
The Zen Sack® Classic is Read More
The imported Zen Sack is machine washable, made from 100% breathable cotton, and scientifically designed for self-soothing and sounder sleep.
The Zen Sack® Classic is a gently weighted breathable sleep sack that calms like your embrace by providing comforting pressure only where babies are naturally held.
This secure feeling eases the swaddle transition, encouraging self-soothing and helping babies sleep through disruptions, leading to deeper periods of sleep that are essential for healthy development. Safer than loose blankets in your baby's crib, the Zen Sack® Classic is perfect for babies up to 24 months.
- Made with 100% bamboo cotton fabric.
Incredibly soft and breathable but cozy enough to keep baby warm, the Zen Sack® Classic wearable blanket has a TOG rating of 0.5 for year-round comfort.
Sizes: Small (0-6M); Medium (6-15M); (Large (15-24M).See product images to learn more.
- Perfect for tummy sleepers.
The Zen Sack wearable blanket is reversible and can be worn backward - perfect for babies who roll independently.
- Safely calms with only a few ounces.
Designed in line with research from human factors safety experts and pediatric pulmonologists, the Zen Sack is safely weighted only where babies need it, not where they don’t. The Zen Sack has been rigorously tested and is scientifically backed by a recent university-led weight safety study.
- Special features.
Unlike a standard sleep sack, the Zen Sack features gently weighted Cuddle Pad™ technology that soothes like your embrace. Adjustable snaps grow with your baby and a top-quality 2-way zipper ensures easy changes.
- Trusted by over 2 million families.
92% of parents reported sleep improvements.*
*As per consumer research conducted from 2020–2023 involving parents who use Zen Sleepwear products for their infants
Read LessZen Sleep Sack Reviews
STEPHANIE S.
Excellent product!
Katrina M.
My son loves this great for belly sleepers.
Jamie H.
Works wonders for my baby when she fights sleep and wants to be held when taking naps. She also sleeps throughout the night at 2 months old! Helps promote restful sleeps. I would recommend to anyone
Jan R.
Little man sleeps all night in his nested bean zen sack! We found them when my granddaughter was born and they have been a “must have” since then.
Macey S.
We love our nested bean!
Melissa E.
The zen sack hasn't sleeps our baby sleep. Its been a week and a half and still no improvement on sleep.
Abby S.
Before using this sleep sack my son would sleep 2-3 hours then wake up, now he sleeps at least 5-7 hours straight. The first night using it he slept 7 hours I could not believe it! Plan to buy the next size up!!
Tara M.
We are on night 4 of very good sleep. This is my girl's first sleep sack from coming out of a swaddle at 5 months. She even likes sleeping on her tummy! Material is super soft.
Kelly P.
I love that it snaps up top and zips all around so it’s easy to on and off. The only thing I wish this sleep sack had was the option to swaddle. I know they have the zen one sack but that has mesh on the arms and I would like something that covers arms during the cold months
Shanelle D.
It’s not that I dislike it; it’s obviously a quality product and is very cute and nicely made. It’s that my baby hates it. He just hates swaddles or anything that restricts his legs. We’ll keep it because it’s too big of a pain to send back and maybe he’ll be game for using it some day, or we’ll gift it to someone else maybe, but yeah. Had high hopes it was going to help and those hopes crashed and burned.
Chelsea T.
My baby did not love being swaddled. From the time she was big enough to use the Nested Bean sleep sack, she has. We love them, and she sleeps great! We will continue to size up until she can’t/wont use them anymore!
Laura C.
Love it! My baby hates swaddling but this is perfect for him. Sleep getting longer. Thank you!
Bella K.
Our baby was struggling the transition to her own crib at night, I had someone recommend this product. I was hesitant on the price but we received one as a gift and this is the best sack we’ve used. Our baby hasn’t woken up during the night to come back into our room. She’s in her crib all night long!
As pictures she’s a tummy sleeper, so being reversible was perfect for my little one!!
10000/10 recommend
Susan W.
My granddaughter absolutely loves her nested bean sack! We won’t buy anything else.
Maylin M.
Love the way it fits! And most of all how well my baby sleeps in it.
Taylor H.
Hardly weighted to make any difference. Our child did not sleep better at all.
Annabell H.
It’s ripped. Only had it for 3 days
Joanna A.
Baby sleeps much better at night when she has this on
Beth F.
The material is extremely soft.
Kerry D.
This is our 5th sleep sack. Although, it did not magically work and it’s been a week and my son is still waking up 5x a night, the sleep sack is super cozy. The material is super soft & comfy, I want it for myself.! The weighted chick is super light weight, basically like one of those tiny bean bags. My son does like the sleep sack, I was just praying it would improve his sleep and it has not.
Sara H.
Love this!
Laurel L.
On the left, is the Sleep Sack I just purchased for our 3rd child. On the right, is the Sleep Sack we used with our 1st & 2nd. You may be asking ‘Why is is so worn, dirty & ugly?!’ It’s because our 2nd ADORES it and even at 4 years old, it’s still her equivalent to a baby blanket. She still cuddles with it when she sleeps, when she’s upset or when she needs a little bit of extra courage. I recommend Nested Bean to all new parents because 1) it works within days and 2) it brings comfort well beyond the child wearing it. It is worth the price and is an investment. If you child doesn’t love it to death like my 2nd, it is easily gift able or can be kept as a keepsake for future use.
Olga ' B.
Didn't make any difference in sleep
Zachary I.
This sleep sack is freaking amazing!!! Our 2 month old has been sleeping consecutively for 6-7 hours ever since we put her in this. She's more rested in the morning and has been getting better during the day as well. I highly recommend purchasing this for your babies!!!
Sasha H.
We loved Nested Bean sleep sacks. We used this for our other son when he was a baby and noticed a big difference in the stretches of sleep we got from him wearing it. Our current baby has been going through the 4 month sleep regression pretty bad the last few weeks. We ordered this right away and last night we got a 6 hour stretch of sleep from him! Amazing compared to the 90 minute stretches we were getting the previous two weeks.
Lauren S.
We love the nested bean sleep sacks! We have 3 kids and all slept great in them, even the fussy sleeper.
candace a.
Didn’t notice a difference in my child’s sleep at all :(
Grace B.
I gave it as a gift and it will be a while before the baby is born. I really have nothing to say because it was in a box and I never took it out.
Leah E.
Amazing!
Nicolle A.
I have been using the sleep sack with my two girls and they have slept amazing. By far the best sleep sack. I feel safe using them and love that they can be used either way since my baby have been tummy sleepers.
Kayla W.
Unfortunately, the Zen Sack did not work for our daughter. We tried using it for 10 consistent nights and she was just not able to sleep well.
Kate G.
Lovely cozy sleep sack that comforts my babe and let’s me sneak away more easily
Michelle J.
Love love love! Will definitely buy another one this winter with the warmer fabric!
Renata B.
My daughter loves and feels more comfortable using it.
christaleni h.
2 weeks after using this baby sleeps straight through the night!
Stacy B.
The only sleepy sack my son will stay asleep in! We just bought another because we love it so much!!
Lauren H.
My baby instantly fell asleep after I put the sleep sack on her. Usually she has to fall asleep on my chest and then I transfer her to the bassinet but not this time!! Amazing purchase!!
Taylor S.
Our child sleeps great in the zen sleep sack and shipping was fast
Darla E.
The Zen Sack is a game changer for my grandson..he loves his and sleeps so well in his..they was up great..just ordered a replacement for one that got left behind on vacation
Megan W.
Fantastic product. Horrible customer service… real shame.
Lisa L.
My grandson sleeps so soundly now. Thank you
Ilsy B.
We love the color and our little one sleeps so well with this! Highly recommend this!
Kylei F.
We just upgraded from the 0-3 month zen sleep sack to the 6-9 month classic sleep sack and both are a MUST HAVE. Definitely a holy grail product I will use for all of my children at all stages of sleep.
Luis T.
Has not worked the first week
Lisa L.
This has been a blessing for us. It really helps our grandson sleep at night.
Kelly G.
Lifesaver for both of my boys! They get the best sleep compared to when they don’t wear.
fadia w.
I have not receive any of my orders yet too long of a wait and till now nothing received
Yesenia F.
Unfortunately this sleep suit didn’t do anything with helping my 5mo old sleep longer or better.
Marissa B.
I have the 6-15 month size of this I bought years ago in white, and the fabric is so nice and smooth and comfy.
I purchased this in the navy color in the 0-6 month size and the material seems heavier and more scratchy. Not soft like the old one. It’s disappointing for a $50 swaddle.
My son is a good sleeper naturally, but this is the first swaddle I’ve used to try to transition him to arms out. I can’t say if he sleeps better or not with it.
Maria H.
My child enjoys it. I wouldn’t say we saw a difference in his sleep.
Stacy B.
First week of using this sleep sack, my 3 month old slept 7-8 hours every day!! It is truly the best sleep sack I’ve ever tried.
Alicia T.
Helps our son get 12 hours of sleep at night! Wonderful sleep sack through all stages! We just sized up as our boy turned 8 months, and this sleep sack is cozy and easy to wash. We will definitely stick to this brand as he grows.
Carol G.
The zen sack is great!
Brittany S.
Super soft and light weight. My little seems to really enjoy it.
Alyssa W.
We love the Zen Sack! Our little one liked having her arms swaddled up when she was smaller, but once she started rolling and swaddling became unsafe, it was tough to find a sleep sack that helped her sleep on her own. The Zen Sack is a game changer! It’s especially great that it can be worn backward for stomach sleepers. Highly recommend!
Rachel A.
I’ve purchased this sleep sack for a previous baby who had trouble sleeping long stretches during the night. It worked better with my first baby than with my current baby, but it still is really nice. My baby’s room is at 69 degrees at night, so I dress her in footless long sleeve pajamas to stay warmer, and wrap her in a light blanket to be comfortable temp due to lighter fabric of the classic sack.
My baby to about a week to adjust to the weight on her chest, it seemed to throw her off and was still waking up every 30 min or so for the first week of wearing it.
She is about 2 months old and the fit is quite snug, it isn’t quite as long as I thought and fits around her shoulders on the smallest snap fitting. It also shrunk a bit in the wash. The quilted version is more loose fit overall.
Giving it 4 stars because I’m happy with my purchase, high quality product but it’s not the best purchase I’ve ever made. It tends to bunch up around the shoulders as I lift and carry her so it has to be pulled down occasionally to avoid crowding her feet, which she hates. But I would recommend it to people to try out, 1.5 to 2 hr stretches of sleep is better than 30 mins.
Angie P.
Horrible. My son slept worse with it. Took it off and he slept 8 hours!
Carrie D.
I bought this as a gift after using Nested Bean Zen Sack for my own daughter 4 years ago. She was a side sleeper from birth so not safe to swaddle and this sleep sack was a lifesaver! The zipper at the bottom is clutch for nighttime diaper changers. I can’t say enough how much we loved our Nested Bean sleep sacks!
Emily R.
Great sleep sack! The weight really is not heavy which is good, I don’t want a completely weighted sleep sack due to safety concerns. After careful consideration I do not think the weight is heavy enough to cause any harm. It keeps him cozy at night and is easy to use.
Emily S.
We absolutely love the Nested Bean Sleepsack! Our son had the 0-6 month one and it made the transition from the swaddle to sleepsack so much easier! It was no question in our mind that we would use the same brand for the next size up!
Vanessa C.
The sleep sack improves sleep so much. We had the Zen One and once our baby grew out of it we ordered the larger one. The 3-4 nights that he didn’t have a sleep sack (as we awaited the new one being shipped) created MANY night wake ups. We thought maybe a sleep regression was forming until he slept through the night again once the sleep sack arrived and he was back in it at night! Seeing such a difference makes it so worth it! This is definitely a must have for little ones!!!!
Sara P.
It unfortunately doesn’t work for my little one.
Julia S.
I nanny for a 10 month old and his naps are longer and he wakes up very happy and smiling because he his so well rested!
Bailey B.
We love nested bean and have used the sleep sacks with both of our kids. They have helped tremendously when it comes to sleeping through the night. Don’t hesitate to buy!
Karla O.
It’s comfy and soft, easy to take off and put on,
easy for my baby to move around and he sure sleeps better and a couple of hours more now! Love this product and I’ve recommended to soon to be Mamas.
Jenny T.
We wish there was weight near the feet area to help our baby kick less, waking himself up. I also wish the chest weight was slightly heavier because he doesn’t really notice it with the current weight.
Brooke R.
our first nested bean sac was extremely loved and went through two babies and a couple months of the third until the material got thin and ripped a large whole but we quickly ordered and he is adjusting to his new sack nicely !!
Heather K.
Love the sleep sack. My 5 month old sleeps great in it. Love how it keeps him warm at night without me having to worry about a blanket getting over his face while he sleeps.
Elle F.
You know what? I don’t hate it! I think the design is really easy to get in and out of. I prefer it to a traditional zip up. HOWEVER. I wish the weight was slightly heavier. It doesn’t feel like anything is there
Valeria S.
My son loves his sleep sack!! It’s so soft and comfortable!!
Susan M.
My daughter in law loves it!!
Ashley T.
Comfy, cute, warm yet breathable. We loved the swaddles before she was rolling and now love the sleep sack!
Faye T.
My daughter and I both absolutely love it, it makes transferring her so much easier at night, and keeps her a little warmer when we have the fan on, definitely a 10/10, I’ll 100% be purchasing again when she outgrows this one!
Hindy Prengler P.
Highly recommend!!
Hindy Prengler P.
Highly recommend this sleep sack. Helps my baby sleep better.
Rachel M.
We love this sleep sack! It was the first one we transitioned our 6 month to after the Merlin sleep suit because he started rolling over at night. He loves this sack and is comfy on his back and his tummy and is sleeping mostly through the night!
Kerianne V.
This is the perfect sleep sack for a baby who needs the security of feeling some slight weight but also needs some air!
Jennifer Z.
Finally my little one was able to transition from been swaddle to arms free, love it …
Megan E.
Love these for our 7 month old! We started with the zen swaddles but when he started breaking out of those and rolling, we switched to the sleep sacks. He still settled in to sleep and naps just as well and did great with the switch. The regular cotton is the perfect weight to keep him warm, but not hot. We had to get a second so we can keep one on rotation for nap time on laundry days! That double zipper is a life saver for early morning or middle of the night diaper changes.
Jaclynn M.
I truly believe my baby loves and would tell me if she could! She falls asleep fast and sleeps through the night, only waking up maybe once to eat and goes right back to sleep! Mama is feeling rested! So far so good! Thanks nestedbean!
Edwin R.
We just transitioned our 8 month old to her crib and we were having trouble with her waking up throughout the night and only going back to sleep once we put her back in the bed with us. In the last week that we've had the zen sack she's been mostly sleeping throughout the night AND staying in her crib!
Deidre M.
We love the Nested Bean sleep sack so much. Helps my baby get the rest she needs.
Dustin D.
We’ve been using nested bean since our baby was 6 months old and we love it. It definitely help him sleep better and longer.
Tara P.
Very nice, well made product. Unfortunately it hasn’t worked any miracles with getting my little one to stay asleep.
Meryam J.
As much as I wanted to love this, it didn’t make a difference in his sleep, not really weighted or anything special. Just didn’t work for us
Mikayla L.
Since our baby has been 4 months old the use of this sleepsack is a game-changer! We went from having a colicky baby that wouldn't go to sleep till after 11 with a cry fit from 9 pm-11 pm at least, once we started using this sleep sack we were able to get our first night without a colicky fit and we left those in the past with the use of this sleep sack!
Kirsty H.
After trying what feels like a billion different swaddles we finally have a winner for arms up!
Pang W.
My daughter sleeps 11-12 hours every night because of Zen Sack Quilted!
Vanessa C.
Day 1 my 5 week old slept okay. Day 2 she slept better. Day 3, we are sleeping 4-5 hours straight and she wakes up once to eat and change diaper and goes back to sleep for 2-3 more hours. We did have to skip a night without it to wash and she woke up every hour! As soon as she wore it again the following night she went back to sleeping 5 hours. I will be purchasing more as she gets older. Finally getting sleep has helped my ppd immensely. So grateful!
Milah P.
Lovely sleep sack! My twins sleep well throughout the night :-)
Merlyn P.
Great products! I have 3 sleep sacks and baby loves them <3
Jana C.
I love these sacks. My daughter sleeps so nicely with it. It definitely helps babies to fall asleep easily and sleep well.
Velia N.
My 2 week old was breaking out of our swaddle we had for our last 2 kiddos and we needed something to comfort his sleep stat!! The first time was like magic, slept great and didn't wake himself up with the startle reflex. There have been some struggles with putting his arms down but I love the option of having his arms up if he wants comfort. Definitely recommend this product to anyone looking for a great quality swaddle.
Lindsey D.
Such a good product! This is the second one I’ve ordered and I couldn’t say better things about it. I’ll always recommend this brand for sleep sacks
Rae D.
We have used the sleep sack with my 5 month old for about a month now. I was super worried about the transition from being swaddled to her sleeping in a sleep sack but her Nested Bean made that almost perfect! I truly think we would have had a much harder time with the transition and with the 4 month sleep regression had it not been for the Nested Bean sleep sack! We already have the next size up because we will not be without this now!!
KAYLAN N.
Helps keep my baby asleep longer
Paula R.
This is a game changer!! Our almost 3 month old has gone from sleeping an hour at most in his bassinet to sleeping 4-6 hour stretches, since day 1 of using his sleep sack! We have been using this for almost a month now and he is starting to associate the sleep sack with bedtime, it’s the best!
Bailie B.
My boy absolutely LOVES this sleep sack!!! This is the 3rd NB product we’ve bought and every single time it has been worth it. I will say the 6-15m little weighted egg is definitely larger than I was expecting it to be but as he grows I’m sure it won’t seem as big!
For reference my LO is 5mo old, ~28”, and about 15lbs (7th percentile for weight, 95th for height) and it fits him great while still giving him room to grow!
Charlsey S.
My 9 month old sleeps comfortably in her nested bean sleep sack. She is a belly sleeper & this helps her feel more comfortable in her crib.
Jessica G.
Fits just right! My baby seems to sleep better with the weight in the chest area.
STEPHANIE S.
Excellent product!
Katrina M.
My son loves this great for belly sleepers.
Jamie H.
Works wonders for my baby when she fights sleep and wants to be held when taking naps. She also sleeps throughout the night at 2 months old! Helps promote restful sleeps. I would recommend to anyone
Jan R.
Little man sleeps all night in his nested bean zen sack! We found them when my granddaughter was born and they have been a “must have” since then.
Macey S.
We love our nested bean!
Melissa E.
The zen sack hasn't sleeps our baby sleep. Its been a week and a half and still no improvement on sleep.
Abby S.
Before using this sleep sack my son would sleep 2-3 hours then wake up, now he sleeps at least 5-7 hours straight. The first night using it he slept 7 hours I could not believe it! Plan to buy the next size up!!
Tara M.
We are on night 4 of very good sleep. This is my girl's first sleep sack from coming out of a swaddle at 5 months. She even likes sleeping on her tummy! Material is super soft.
Kelly P.
I love that it snaps up top and zips all around so it’s easy to on and off. The only thing I wish this sleep sack had was the option to swaddle. I know they have the zen one sack but that has mesh on the arms and I would like something that covers arms during the cold months
Shanelle D.
It’s not that I dislike it; it’s obviously a quality product and is very cute and nicely made. It’s that my baby hates it. He just hates swaddles or anything that restricts his legs. We’ll keep it because it’s too big of a pain to send back and maybe he’ll be game for using it some day, or we’ll gift it to someone else maybe, but yeah. Had high hopes it was going to help and those hopes crashed and burned.
Chelsea T.
My baby did not love being swaddled. From the time she was big enough to use the Nested Bean sleep sack, she has. We love them, and she sleeps great! We will continue to size up until she can’t/wont use them anymore!
Laura C.
Love it! My baby hates swaddling but this is perfect for him. Sleep getting longer. Thank you!
Bella K.
Our baby was struggling the transition to her own crib at night, I had someone recommend this product. I was hesitant on the price but we received one as a gift and this is the best sack we’ve used. Our baby hasn’t woken up during the night to come back into our room. She’s in her crib all night long!
As pictures she’s a tummy sleeper, so being reversible was perfect for my little one!!
10000/10 recommend
Susan W.
My granddaughter absolutely loves her nested bean sack! We won’t buy anything else.
Maylin M.
Love the way it fits! And most of all how well my baby sleeps in it.
Taylor H.
Hardly weighted to make any difference. Our child did not sleep better at all.
Annabell H.
It’s ripped. Only had it for 3 days
Joanna A.
Baby sleeps much better at night when she has this on
Beth F.
The material is extremely soft.
Kerry D.
This is our 5th sleep sack. Although, it did not magically work and it’s been a week and my son is still waking up 5x a night, the sleep sack is super cozy. The material is super soft & comfy, I want it for myself.! The weighted chick is super light weight, basically like one of those tiny bean bags. My son does like the sleep sack, I was just praying it would improve his sleep and it has not.
Sara H.
Love this!
Laurel L.
On the left, is the Sleep Sack I just purchased for our 3rd child. On the right, is the Sleep Sack we used with our 1st & 2nd. You may be asking ‘Why is is so worn, dirty & ugly?!’ It’s because our 2nd ADORES it and even at 4 years old, it’s still her equivalent to a baby blanket. She still cuddles with it when she sleeps, when she’s upset or when she needs a little bit of extra courage. I recommend Nested Bean to all new parents because 1) it works within days and 2) it brings comfort well beyond the child wearing it. It is worth the price and is an investment. If you child doesn’t love it to death like my 2nd, it is easily gift able or can be kept as a keepsake for future use.
Olga ' B.
Didn't make any difference in sleep
Zachary I.
This sleep sack is freaking amazing!!! Our 2 month old has been sleeping consecutively for 6-7 hours ever since we put her in this. She's more rested in the morning and has been getting better during the day as well. I highly recommend purchasing this for your babies!!!
Sasha H.
We loved Nested Bean sleep sacks. We used this for our other son when he was a baby and noticed a big difference in the stretches of sleep we got from him wearing it. Our current baby has been going through the 4 month sleep regression pretty bad the last few weeks. We ordered this right away and last night we got a 6 hour stretch of sleep from him! Amazing compared to the 90 minute stretches we were getting the previous two weeks.
Lauren S.
We love the nested bean sleep sacks! We have 3 kids and all slept great in them, even the fussy sleeper.
candace a.
Didn’t notice a difference in my child’s sleep at all :(
Grace B.
I gave it as a gift and it will be a while before the baby is born. I really have nothing to say because it was in a box and I never took it out.
Leah E.
Amazing!
Nicolle A.
I have been using the sleep sack with my two girls and they have slept amazing. By far the best sleep sack. I feel safe using them and love that they can be used either way since my baby have been tummy sleepers.
Kayla W.
Unfortunately, the Zen Sack did not work for our daughter. We tried using it for 10 consistent nights and she was just not able to sleep well.
Kate G.
Lovely cozy sleep sack that comforts my babe and let’s me sneak away more easily
Michelle J.
Love love love! Will definitely buy another one this winter with the warmer fabric!
Renata B.
My daughter loves and feels more comfortable using it.
christaleni h.
2 weeks after using this baby sleeps straight through the night!
Stacy B.
The only sleepy sack my son will stay asleep in! We just bought another because we love it so much!!
Lauren H.
My baby instantly fell asleep after I put the sleep sack on her. Usually she has to fall asleep on my chest and then I transfer her to the bassinet but not this time!! Amazing purchase!!
Taylor S.
Our child sleeps great in the zen sleep sack and shipping was fast
Darla E.
The Zen Sack is a game changer for my grandson..he loves his and sleeps so well in his..they was up great..just ordered a replacement for one that got left behind on vacation
Megan W.
Fantastic product. Horrible customer service… real shame.
Lisa L.
My grandson sleeps so soundly now. Thank you
Ilsy B.
We love the color and our little one sleeps so well with this! Highly recommend this!
Kylei F.
We just upgraded from the 0-3 month zen sleep sack to the 6-9 month classic sleep sack and both are a MUST HAVE. Definitely a holy grail product I will use for all of my children at all stages of sleep.
Luis T.
Has not worked the first week
Lisa L.
This has been a blessing for us. It really helps our grandson sleep at night.
Kelly G.
Lifesaver for both of my boys! They get the best sleep compared to when they don’t wear.
fadia w.
I have not receive any of my orders yet too long of a wait and till now nothing received
Yesenia F.
Unfortunately this sleep suit didn’t do anything with helping my 5mo old sleep longer or better.
Marissa B.
I have the 6-15 month size of this I bought years ago in white, and the fabric is so nice and smooth and comfy.
I purchased this in the navy color in the 0-6 month size and the material seems heavier and more scratchy. Not soft like the old one. It’s disappointing for a $50 swaddle.
My son is a good sleeper naturally, but this is the first swaddle I’ve used to try to transition him to arms out. I can’t say if he sleeps better or not with it.
Maria H.
My child enjoys it. I wouldn’t say we saw a difference in his sleep.
Stacy B.
First week of using this sleep sack, my 3 month old slept 7-8 hours every day!! It is truly the best sleep sack I’ve ever tried.
Alicia T.
Helps our son get 12 hours of sleep at night! Wonderful sleep sack through all stages! We just sized up as our boy turned 8 months, and this sleep sack is cozy and easy to wash. We will definitely stick to this brand as he grows.
Carol G.
The zen sack is great!
Brittany S.
Super soft and light weight. My little seems to really enjoy it.
Alyssa W.
We love the Zen Sack! Our little one liked having her arms swaddled up when she was smaller, but once she started rolling and swaddling became unsafe, it was tough to find a sleep sack that helped her sleep on her own. The Zen Sack is a game changer! It’s especially great that it can be worn backward for stomach sleepers. Highly recommend!
Rachel A.
I’ve purchased this sleep sack for a previous baby who had trouble sleeping long stretches during the night. It worked better with my first baby than with my current baby, but it still is really nice. My baby’s room is at 69 degrees at night, so I dress her in footless long sleeve pajamas to stay warmer, and wrap her in a light blanket to be comfortable temp due to lighter fabric of the classic sack.
My baby to about a week to adjust to the weight on her chest, it seemed to throw her off and was still waking up every 30 min or so for the first week of wearing it.
She is about 2 months old and the fit is quite snug, it isn’t quite as long as I thought and fits around her shoulders on the smallest snap fitting. It also shrunk a bit in the wash. The quilted version is more loose fit overall.
Giving it 4 stars because I’m happy with my purchase, high quality product but it’s not the best purchase I’ve ever made. It tends to bunch up around the shoulders as I lift and carry her so it has to be pulled down occasionally to avoid crowding her feet, which she hates. But I would recommend it to people to try out, 1.5 to 2 hr stretches of sleep is better than 30 mins.
Angie P.
Horrible. My son slept worse with it. Took it off and he slept 8 hours!
Carrie D.
I bought this as a gift after using Nested Bean Zen Sack for my own daughter 4 years ago. She was a side sleeper from birth so not safe to swaddle and this sleep sack was a lifesaver! The zipper at the bottom is clutch for nighttime diaper changers. I can’t say enough how much we loved our Nested Bean sleep sacks!
Emily R.
Great sleep sack! The weight really is not heavy which is good, I don’t want a completely weighted sleep sack due to safety concerns. After careful consideration I do not think the weight is heavy enough to cause any harm. It keeps him cozy at night and is easy to use.
Emily S.
We absolutely love the Nested Bean Sleepsack! Our son had the 0-6 month one and it made the transition from the swaddle to sleepsack so much easier! It was no question in our mind that we would use the same brand for the next size up!
Vanessa C.
The sleep sack improves sleep so much. We had the Zen One and once our baby grew out of it we ordered the larger one. The 3-4 nights that he didn’t have a sleep sack (as we awaited the new one being shipped) created MANY night wake ups. We thought maybe a sleep regression was forming until he slept through the night again once the sleep sack arrived and he was back in it at night! Seeing such a difference makes it so worth it! This is definitely a must have for little ones!!!!
Sara P.
It unfortunately doesn’t work for my little one.
Julia S.
I nanny for a 10 month old and his naps are longer and he wakes up very happy and smiling because he his so well rested!
Bailey B.
We love nested bean and have used the sleep sacks with both of our kids. They have helped tremendously when it comes to sleeping through the night. Don’t hesitate to buy!
Karla O.
It’s comfy and soft, easy to take off and put on,
easy for my baby to move around and he sure sleeps better and a couple of hours more now! Love this product and I’ve recommended to soon to be Mamas.
Jenny T.
We wish there was weight near the feet area to help our baby kick less, waking himself up. I also wish the chest weight was slightly heavier because he doesn’t really notice it with the current weight.
Brooke R.
our first nested bean sac was extremely loved and went through two babies and a couple months of the third until the material got thin and ripped a large whole but we quickly ordered and he is adjusting to his new sack nicely !!
Heather K.
Love the sleep sack. My 5 month old sleeps great in it. Love how it keeps him warm at night without me having to worry about a blanket getting over his face while he sleeps.
Elle F.
You know what? I don’t hate it! I think the design is really easy to get in and out of. I prefer it to a traditional zip up. HOWEVER. I wish the weight was slightly heavier. It doesn’t feel like anything is there
Valeria S.
My son loves his sleep sack!! It’s so soft and comfortable!!
Susan M.
My daughter in law loves it!!
Ashley T.
Comfy, cute, warm yet breathable. We loved the swaddles before she was rolling and now love the sleep sack!
Faye T.
My daughter and I both absolutely love it, it makes transferring her so much easier at night, and keeps her a little warmer when we have the fan on, definitely a 10/10, I’ll 100% be purchasing again when she outgrows this one!
Hindy Prengler P.
Highly recommend!!
Hindy Prengler P.
Highly recommend this sleep sack. Helps my baby sleep better.
Rachel M.
We love this sleep sack! It was the first one we transitioned our 6 month to after the Merlin sleep suit because he started rolling over at night. He loves this sack and is comfy on his back and his tummy and is sleeping mostly through the night!
Kerianne V.
This is the perfect sleep sack for a baby who needs the security of feeling some slight weight but also needs some air!
Jennifer Z.
Finally my little one was able to transition from been swaddle to arms free, love it …
Megan E.
Love these for our 7 month old! We started with the zen swaddles but when he started breaking out of those and rolling, we switched to the sleep sacks. He still settled in to sleep and naps just as well and did great with the switch. The regular cotton is the perfect weight to keep him warm, but not hot. We had to get a second so we can keep one on rotation for nap time on laundry days! That double zipper is a life saver for early morning or middle of the night diaper changes.
Jaclynn M.
I truly believe my baby loves and would tell me if she could! She falls asleep fast and sleeps through the night, only waking up maybe once to eat and goes right back to sleep! Mama is feeling rested! So far so good! Thanks nestedbean!
Edwin R.
We just transitioned our 8 month old to her crib and we were having trouble with her waking up throughout the night and only going back to sleep once we put her back in the bed with us. In the last week that we've had the zen sack she's been mostly sleeping throughout the night AND staying in her crib!
Deidre M.
We love the Nested Bean sleep sack so much. Helps my baby get the rest she needs.
Dustin D.
We’ve been using nested bean since our baby was 6 months old and we love it. It definitely help him sleep better and longer.
Tara P.
Very nice, well made product. Unfortunately it hasn’t worked any miracles with getting my little one to stay asleep.
Meryam J.
As much as I wanted to love this, it didn’t make a difference in his sleep, not really weighted or anything special. Just didn’t work for us
Mikayla L.
Since our baby has been 4 months old the use of this sleepsack is a game-changer! We went from having a colicky baby that wouldn't go to sleep till after 11 with a cry fit from 9 pm-11 pm at least, once we started using this sleep sack we were able to get our first night without a colicky fit and we left those in the past with the use of this sleep sack!
Kirsty H.
After trying what feels like a billion different swaddles we finally have a winner for arms up!
Pang W.
My daughter sleeps 11-12 hours every night because of Zen Sack Quilted!
Vanessa C.
Day 1 my 5 week old slept okay. Day 2 she slept better. Day 3, we are sleeping 4-5 hours straight and she wakes up once to eat and change diaper and goes back to sleep for 2-3 more hours. We did have to skip a night without it to wash and she woke up every hour! As soon as she wore it again the following night she went back to sleeping 5 hours. I will be purchasing more as she gets older. Finally getting sleep has helped my ppd immensely. So grateful!
Milah P.
Lovely sleep sack! My twins sleep well throughout the night :-)
Merlyn P.
Great products! I have 3 sleep sacks and baby loves them <3
Jana C.
I love these sacks. My daughter sleeps so nicely with it. It definitely helps babies to fall asleep easily and sleep well.
Velia N.
My 2 week old was breaking out of our swaddle we had for our last 2 kiddos and we needed something to comfort his sleep stat!! The first time was like magic, slept great and didn't wake himself up with the startle reflex. There have been some struggles with putting his arms down but I love the option of having his arms up if he wants comfort. Definitely recommend this product to anyone looking for a great quality swaddle.
Lindsey D.
Such a good product! This is the second one I’ve ordered and I couldn’t say better things about it. I’ll always recommend this brand for sleep sacks
Rae D.
We have used the sleep sack with my 5 month old for about a month now. I was super worried about the transition from being swaddled to her sleeping in a sleep sack but her Nested Bean made that almost perfect! I truly think we would have had a much harder time with the transition and with the 4 month sleep regression had it not been for the Nested Bean sleep sack! We already have the next size up because we will not be without this now!!
KAYLAN N.
Helps keep my baby asleep longer
Paula R.
This is a game changer!! Our almost 3 month old has gone from sleeping an hour at most in his bassinet to sleeping 4-6 hour stretches, since day 1 of using his sleep sack! We have been using this for almost a month now and he is starting to associate the sleep sack with bedtime, it’s the best!
Bailie B.
My boy absolutely LOVES this sleep sack!!! This is the 3rd NB product we’ve bought and every single time it has been worth it. I will say the 6-15m little weighted egg is definitely larger than I was expecting it to be but as he grows I’m sure it won’t seem as big!
For reference my LO is 5mo old, ~28”, and about 15lbs (7th percentile for weight, 95th for height) and it fits him great while still giving him room to grow!
Charlsey S.
My 9 month old sleeps comfortably in her nested bean sleep sack. She is a belly sleeper & this helps her feel more comfortable in her crib.
Jessica G.
Fits just right! My baby seems to sleep better with the weight in the chest area.
Frequently asked questions
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How much weight is in the Zen Sack® Classic sleep sack?
All Zen sleep sacks feature a built-in Cuddle Pad™, which weighs just 30 grams (Small size) 60 grams (Medium size) and 90 grams (Large size and distributed across the chest). Our baby sleep sacks are safely weighted in key areas as opposed to all-weighted sleep sacks or weighted blankets, which the AAP has deemed unsafe for infants.
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What’s the difference between Nested Bean weighted baby sleep sacks products?
Nested Bean offers a variety of sleep sacks, all of which are designed to calm like your embrace: Zen Sack® Classic, Zen Sack® Premier, Zen Sack® Winter and Zen Sack® Quilted. The difference between our weighted sleep sacks is the fabric used for construction. Zen Sack® Classic is made from 100% breathable cotton, and is perfect for year-round use. Zen Sack® Premier ,made from 70% rayon from bamboo for luxurious softness and 30% cotton for strength, is lightweight for warmer temps. Zen Sack® Winter is made from 100% cotton, with a 2.5 TOG and heavy poly-fiber filling for colder weather. And Zen Sack® Quilted is a cozy transitional sleep sack, for when temps start to drop.
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Are Nested Bean weighted baby sleep sacks safe for babies who roll over?
All Zen Sack® sleep sacks were designed for rollers and tummy sleepers; they help babies get longer, more peaceful sleep through all growth stages. The Small and Medium size sleep sacks have a gently weighted Cuddle Pad™ on the front that is so light and flexible, it nearly flattens when baby rolls to their tummy. The sleep sack can also be reversed and worn backwards for tummy sleepers who roll independently, placing the weighted center on baby's back for uninterrupted comfort all night.
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What is the Cuddle Effect™—and how do Nested Bean sleep sacks trigger it?
The Cuddle Effect is a proven metabolic response that babies experience when they are held, that triggers relaxation and well-being, improves sleep and promotes healthy development. Research on Deep Touch Pressure (DTP) shows that babies experience the Cuddle Effect when they feel gentle pressure in the places you naturally hold them. Nested Bean sleep sacks are designed with gently weighted Cuddle Pads™ that calm like your embrace and trigger the Cuddle Effect for longer sleep.
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Do Nested Bean weighted sleep sacks meet industry safety standards?
Nested Bean baby sleep sacks adhere to all Consumer Product Safety Commission guidelines around product construction, flammability and more. The Cuddle Pad™ in our sleep sacks is self-contained and cannot cause overheating, and the gentle weight does not restrict movement: For example, the Zen Sack™ sleep sack is safe for tummy sleepers, rollers and side sleepers.
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When should you start using a Nested Bean sleep sack?
Once babies start rolling, swaddling stops—and it’s time to transition to a baby sleep sack. Only Nested Bean sleep sacks contain Cuddle Pads™ that are gently weighted to ease the transition from swaddle to sleep sack, so babies experience uninterrupted comfort and longer sleep.
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How long does it take Nested Bean sleep sacks to work?
As with all our gently weighted Zen Sleepwear™, most parents report that our baby sleep sacks improve their baby’s sleep in 1 to 3 nights.
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What is TOG—and how does it differ between Nested Bean sleep sacks?
TOG is a measure of thermal insulation. It is a commonly used term the textile industry to indicate how warm clothing is. The higher the TOG in baby sleep sacks, the better thermal insulation it provides and the warmer it is. For example, the Zen Sack® Classic sleep sack has a TOG of 0.5, perfect for year-round use. The bamboo Zen Sack® Premier sleep sack has a TOG of 0.3, for warmer weather. The Zen Sack® Quilted sleep sack has a TOG of 1.0, great as temps begin to fall. And the Zen Sack® Winter sleep sack has a cozy TOG of 2.5, just right for chilly nights.
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What is the Grow-with-Me feature of Nested Ben sleep sacks?
Nested Bean sleep sacks contain 2 sets of snaps on the shoulders. The bottom snap offers a snug fit, while the top snap offers more room as your baby grows.
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How do Nested Bean sleep sacks hold up in the washing machine?
All Nested Bean weighted baby sleep sacks are made of the highest-grade fabrics, and are designed to be super durable and withstand multiple washings. To protect the fabric quality, we recommend washing our baby sleep sacks in cold water, on a gentle cycle and tumble dry on low heat.
Zen Sack™, the only weighted sleep sack you’ll ever need
Seamlessly transition from swaddling
When rolling starts, swaddling stops—and some babies miss their cozy swaddle. Prevent wakeups with the gently weighted Zen Sack: So soothing, but tummy sleeper safe.
Stop sleep regressions
Rolling, sitting up, teething: New milestones can mean sleep regressions. Add the gently weighted Zen Sack to your sleep routine to help create positive associations with bedtime.
Help baby sleep through the night
Nighttime wakeups? The gently weighted Zen Sack is so comforting, it helps babies self-soothe—so they fall back to sleep on their own.