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Happiest Baby SNOO Sleep Sack - 100% Organic Cotton Baby Swaddle Blanket - Doctor Designed Promotes Healthy Hip Development (Midnight Planets, Small)

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$34.95

$ 17 .99 $17.99

In Stock

1.Color:White


2.:Small


  • “#1 Swaddle” New York Times: Rated America’s best baby swaddle, our SNOO Sleep Sack was designed by top pediatrician and world’s leading hip-safe swaddling expert, Dr. Harvey Karp. Perfect for healthy, growing hips (International Hip Dysplasia Institute seal of approval).
  • 100% Organic Cotton: Made from luxuriously soft organic cotton with special wings that attach to our SNOO Smart Sleeper to keep babies safely on the back. Includes extra-quiet Velcro for escape-proof security and 2-way zipper that opens from top or bottom for easy midnight nappy changes.
  • More Infant Sleep: Our baby swaddle sleep sack prevents startles and boosts babies’ sleep quality with special inner flaps that give the snug embrace your baby boy or girl loved in the womb. Arm openings can unsnap to allow for arms out. Great transitional swaddle for moving to crib with arms free independent sleep training.
  • “5-Second Baby Swaddle”: The Happiest Baby Swaddle is the easiest, safest, fastest, escape-proof baby swaddle wrap. It promotes self-soothing and keeps babies sleeping longer than other swaddles.
  • Prevents Overheating: Breathable mesh at shoulders and legs of baby warp reduce risky overheating. More secure and comfortable than other swaddlers, blankets, or baby sleepers.



Product Description

How To Use SNOO Sleep Sack

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

SNOO Sack 5-Second Baby Swaddle


SNOO Sack has special wings that slip onto SNOO’s clips to secure babies on their backs and prevent risky rolling. This award-winning swaddle sack was created by Dr. Harvey Karp, America’s most celebrated pediatrician. Dr. Karp is the doctor whose 5 S’s started the Swaddle Revolution, so parents can rest easy knowing he designed every detail of SNOO Sleep Sack with baby safety—and parent sanity—in mind.

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

Why Parents Love SNOO Sack

100% Organic SNOO Sleep Sack
SNOO Sack

Arms-in

When using the SNOO sack with the baby's arms in, it helps prevent the startle reflex and keeps the baby's arms snugly wrapped. This can provide a sense of security and promote better sleep.

SNOO sack

Arms-out

If you prefer to have your baby's arms out or if your baby shows signs of wanting more freedom of movement, the SNOO sack can also be used with the arms out.


Casey
August 21, 2025
Super easy to use, helps my baby sleep, super warm and cozy, looks cute!
Hannah M.
August 4, 2025
At first I disliked these and favored the older ones that didn’t have the in between the leg Velcro but I’ve come around on them! I like that they encourage the legs to frog out for proper hip development - it also seems to help tall babies stay in the snoo longer.Two small cons: I like to put a heating pad in the snoo to preheat it before bedtime. The Velcro on the tail piece is sticking up so it always attaches to the heating pad. Not a huge deal but hard to detach one handed when i’m juggling a sleeping baby.The second con is I have found that these take a while to dry in the dryer. I usually have to put them in for 30-45 mins extra. The back band that secures the sack to the snoo is the culprit here.Pros definitely outweigh the cons tho! Great product.
Customer
July 31, 2025
Loved this swaddle. My sons would ONLY sleep in a swaddle and this was by far the best one we purchased. Kept his little arms down and thus made for a great night sleep for everyone. Him and us!
SAHdaddy
July 25, 2025
Great product. Personally like this fabric compared to the canvas like material baby sack the snoo comes in. The fabric is much softer and the wife loves the color as well. Fits perfect with the basinet, and stretches perfectly to the baby. No smell of any chemicals, not too heavy or thick for the season. Very easy to use especially due to the light fabric material.
Diane Z.
July 14, 2025
Adorable sleep sack for your little one! Purchased this for a baby shower bc it was on her list. Its adorable! Great quality.
Mackenzie Palmer
July 9, 2025
We tried many different brands including the Halo and this one is the best. It’s snug enough, good quality material, and my son sleeps so well with it. He has slept 8-9 hours every night since 6 weeks old.
juan
June 3, 2025
Worked great in the beginning, but recommend wash regularly for sweaty babies because they do smell and lingerie for a while.
Byron Lee
May 29, 2025
Yo, let's talk about the real deal – eczema. My little one was going through it, and the struggle was real, bro. Sleepless nights, non-stop itching – you name it. But then, enter the Happiest Baby SNOO Sleep Sack – and let me tell you, it's like a game changer for newborns dealing with eczema.This thing is like a soothing hug, keeping my baby snug and comfortable all night long. No more constant scratching, no more irritations. It's like a ticket to dreamland for both of us. The design is legit smart – soft and breathable, so my little dude isn't sweating bullets.The SNOO Sleep Sack ain't just a sleep accessory, man. It's a lifesaver for all the eczema babies and their tired parents. Quality sleep? Check. Reduced itching? Double check. If you're in the eczema battle, trust me, this sleep sack is your secret weapon. 🌙👶🔥
Olivia C.
May 14, 2025
As advertised - great shipping, and I had to return one with no hassle!
Fillion Florian
April 30, 2025
Ma fille ne l'a pas supportée
cyrile brandt
April 13, 2025
My husband and i were struggling with swaddles in general until we found this one that has a velcro and zips the baby right in place. Our baby slept super well and the material has a breathable mesh.
Jimmy
March 8, 2025
Vibrant colours, very soft, high quality and great fit. It's breathable and doesn't retain stains
SM canada
February 14, 2025
Came in snoo box, wash first, original snoo product. Leave extra time for sack in dryer seams take time to dry
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