Happiest Baby Sleepea 5-Second Swaddle - 100% Organic Cotton Baby Swaddle Blanket - Doctor Designed Promotes Healthy Hip Development (Midnight Planets, Large)
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Availability:
In Stock.
Arrives
Thursday, Mar 12
Color: Midnight Planets
Size: Large
Features
- #1 Swaddle New York Times: Rated Americas best baby swaddle, our Sleepea was designed by top pediatrician and the worlds leading 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 that is safe for babies. 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 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 arms free independent sleep training.
- 5-Second Baby Swaddle: The Happiest Baby Sleepea Swaddle is the easiest, safest, fastest, escape-proof baby swaddle sleep sack. It promotes self-soothing and keeps babies sleeping longer than other swaddle wraps. Breathable mesh at shoulders and legs to reduce risky overheating.
- Sleepea is not for use in SNOO Smart Sleeper and would not prevent risky rolling. In SNOO, please only use a SNOO Sack.
Material: Cotton
Color: Midnight Planets
Brand: Happiest Baby
Special Feature: Breathable
Style: Modern
Material: Cotton
Color: Midnight Planets
Brand: Happiest Baby
Special Feature: Breathable
Style: Modern
Blanket Form: Swaddle
Age Range (Description): Baby
Product Dimensions: 9.75"L x 8"W
Theme: Doctor
Pattern: Planets
Seasons: All
Fill Material: 100% Organic Cotton
Product Care Instructions: Machine Wash
Size: Large
Fabric Type: 100% Organic Cotton
Unit Count: 1.0 Count
Number of Items: 1
Fabric Warmth Description: Lightweight
UPC: 817720023109
Manufacturer: Happiest Baby
Item Weight: 13.4 ounces
Department: Unisex Baby
Date First Available: March 5, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Mar 12
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: Midnight Planets
Size: Small
The media could not be loaded. The single, most HELPFUL product I encountered as a first time mom was this swaddle. My newborn has used it since day 1 at the clinic both at nights and naps, and IT HAS PROLONGED HER SLEEP. We’ve also used it to soothe her, with amazing results. It’s magical!!! I’ve gifted it to friends and family and all parents have been super thankful and happy. PROS: - MORE SLEEP! Total. Game. Changer. My baby slept longer stretches of time with the swaddle on vs. without. And this was the only swaddle that did the trick. We tried dozens! But baby always managed to get the arms out and wake up. This one holds their arms perfectly (thanks to the inner bands with Velcro) and provides the security and soothing that this thousand year long tradition promotes - SO EASY TO USE: it’s so practical to just put velcros together and zip them. Others we tried were confusing, much like doing it with a blanket. My husband and I just aren’t that talented! - EXCELLENT QUALITY: Quality is amazing. Soft and breathable fabric, not to thick, not to light either, we’ve washed it repeatedly and still great for our second child! Same with the Velcro. Still in perfect shape after 4-5 months use - SMART DESIGN FOR EXTENDED USE: Unlike other competitor products, this one allows you to unsap the arm openings, so you can remove one or two arms when baby starts rolling (at around 4 months) and it’s not safe for them to be fully swaddled. So you can extend its use to 5-6 months - DON’T HAVE TO UNSWADDLE FOR DIAPER CHANGE. Two way-zipper has come in super handy when a diaper change was needed in the middle of the night. And a nice detail: the zipper is covered at the end so it doesn’t make contact with baby’s chin. They’ve really thought of everything! CONS: I honestly don’t have a single bad thing to say about this swaddle BOTTOM LINE: Buy this swaddle for your newborn! You won’t regret it. In fact, buy more than one.
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Reviewed in the United States on September 13, 2024 by germangf germangf
Color: Midnight Planets
Size: Small
This is the easiest swaddle out there! As first time parents we tried so many until discovering this one. It saved us during sleep time. As exhausted as we were this design is made simple to keep baby nice and snug all night long. I love the breathable opening too and keeps baby from overheating. So happy we found this one and as very thankful it exists.
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Reviewed in the United States on November 25, 2025 by Samie
FIT: My daughter is 4 months old and on the chunkier side. Her chest is about 16" around, when I put her arms into the straps it can barely close and the flap on the bottom is almost a tad too short for my liking, but I think it's just because my daughter is going through a growth spurt. If I strap just her chest and leave the arms on her sides, it's much more comfortable and she doesn't mind. Otherwise, strapped all in is too tight in my opinion. FEATURES: What I like about this swaddle is how secure the velcro is. Once it's on, it's not budging. Even baby Houdini would struggle with it. This is a high quality swaddle. It's lightweight, breathable and worth the value. The material is soft like a cotton blend that has a little puffiness in the fabric. It's like a baby blanket material, but durable. Bonus is the packaging didn't have any annoying tags you had to pop off. It came in a cardboard box packaging. The 2 way zipper is great for times when you need to change the nappy and don't have to undo the restraint. Simply zip upward and change the diaper. A lot of thought was put into the design. My daughter is a little Hulk and my husband had no problems feeding her while swaddled. The arm sections have heavy duty snaps to keep baby's arms inside or you can undo them to have the arms out and contained which works like a sleep sack. Overall: My daughter had no issues adjusting to it. She does not like swaddles, but this one allowing her to have some arm freedom I feel was a good compromise she is willing to make. The only con I can really think of, is if you have a chunkier baby, size up. I think I'll keep mines because I think this would work fine even if her arms are not in the restraints, but in the sack.
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Reviewed in the United States on December 6, 2024 by Midsized Dolly
Color: Tie Dye Blue
Size: Medium
My baby loves this swaddle! He sleeps great in it! My boy was born big and quickly out grew the swaddle me zip swaddles and this was the only one that was pretty much the same. He didn't like the velcro parts that hold his arms to the side, he prefers them up on his chest. So I ended up closing the velcro parts and laying him on top of it and zipping him up like I would in the swaddle me zip ones. He did great in it just like that. But I ended up using my seam ripper (very carefully) to remove the velcro parts and now its perfect. I wish they'd make it without the velcro parts to begin with but it works just fine laying on top or removing. Overall I will be buying a couple more especially since it can transition to arms out also. The quality is amazing for the price and the material itself is soft and strong.
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Reviewed in the United States on January 1, 2026 by P Boudreaux
Color: Tie Dye Blue
Size: Medium
This is overall a good product-- when baby inevitably ends up getting hands out of the wrap they are still encased inside the zipped swaddle, which still helps with the startle reflex-- but the fact that part of the design requires a piece of fabric to go between baby's legs means that you have to dress him in a onesie, little infant nightgowns aren't an option.
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Reviewed in the United States on November 2, 2025 by Kerry
Color: Graphite Planets
Size: Small
I cannot say enough good things about the Happiest Baby 5-Second Swaddle! As a new parent, sleep is like gold—and this swaddle gave us our sanity back. It truly lives up to its name. Wrapping our newborn takes literally five seconds (no exaggeration), and once he's in, he instantly relaxes. The design is brilliant—snug but breathable, and the inner flaps help keep even our little escape artist feeling secure all night. It mimics the womb perfectly, which is probably why our baby sleeps longer and cries less when swaddled in this. We’ve tried a few other swaddles, but this one blows them all out of the water in terms of ease of use and effectiveness. Bonus points for being super soft and easy to wash. We ended up buying a second one so we’re never without it during laundry day. If you're on the fence, get it. Total lifesaver!
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Reviewed in the United States on October 6, 2025 by Ariel