A secure, multi-functional swaddle and sleep sack in one, designed to be worn for sleep from birth.
Size Guide
Cocoon Swaddle Sack
Please use your child's weight to find the most appropriate and safe size for them. To comply with safety requirements, our Cocoon Swaddle Sacks have a firm fit around the neck, shoulder and chest area to prevent your little one from slipping inside. You should be able to put 2 fingers inside the neck opening for the correct fit. Please do not size up to the next size until your child meets the weight requirement, for safety reasons.
| ergoPouch size | 00000 | Newborn | 0-3M | 3-6M* | 6-12M |
|---|---|---|---|---|---|
| Same as size | 00000 | 0000 | 000 | 00 | 0 |
| Pouch length (cm/inch) | 47cm / 18.5" | 52cm / 20.5" | 60cm / 23.6" | 70cm / 27.6" | 76cm / 29.9" (0.2 & 1.0 TOG) 80cm / 31.5" (2.5 TOG) |
| Child weight (kg/lb) | 2-3kg / 4-7lb | 3-4kg / 7-9lb | 3-6kg / 7-13lb | 6-8kg / 13-18lb | 8-10kg / 18-22lb |
| Child height (cm/inch) | 50cm / 19.7" | 55cm / 21.7" | 62cm / 24.4" | 62-68cm / 24.4" - 26.8" | 68-76cm / 26.8" - 29.9" |
*Previously size 2-6 months
- Free shipping on all orders until 6 April
- Estimated dispatch: 03 April 2025
- 30 day returns and exchanges for full priced products
- Kendall G.Verified Buyer3/26/25ReviewingCocoon Swaddle Sack 2.5 TOG WillowRated 5 out of 5 starsSwaddle for newborn
My newborn is a bit of a Houdini with his ability to break out of swaddles. This is our favorite swaddle for him - keeps him warm, he can't break out of it, and he sleeps so soundly in it!
- Brittany F.Verified Buyer3/7/25ReviewingCocoon Swaddle Sack 2.5 TOG DragonfliesRated 5 out of 5 starsMy baby sleeps better with Ergopouch
Amazing quality sleeping bag!
- Alyssa H.Verified Buyer3/5/25ReviewingCocoon Swaddle Sack 3.5 TOG WillowRated 5 out of 5 starsPerfect for our first camping trip!
We took our little one on her first camping trip at 7 weeks. Needed a safe swaddle that would keep her warm in low 50s (F) temps. We put her in a short sleeve bodysuit, a long sleeve flannel onesie and this and she was perfectly toasty warm and not too hot all night long. Slept 7.5 hrs straight both nights! Couldn’t find many similar products to this, grateful something is made for the under 4month babies!