A secure, multi-functional swaddle and sleeping bag in one, designed to be worn for sleep from birth.
Size Guide
Cocoon Swaddle Bag
Please use your child's weight to find the most appropriate and safe size for them. To comply with safety requirements, our Cocoon Swaddle Bags 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) maximum | 2-3kg / 4-7lb | 3-4kg / 7-9lb | 3-6kg / 7-13lb | 6-8kg / 13-18lb | 8-10kg / 18-22lb |
| Child height (cm/inch) maximum | 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 delivery on orders over £65
- Estimated dispatch: 16 May 2025
- 30 day returns & exchanges
- Abigail C.Verified Buyer5/12/25ReviewingCocoon Swaddle Bag 1.0 TOG Bon AppetitRated 5 out of 5 starsLove love love
Absolutely love this sleep sack.
Perfect warmth for my son and I’m in love with the foodie print. So cute
- Casey T.Verified Buyer5/6/25ReviewingCocoon Swaddle Bag 1.0 TOG WillowRated 5 out of 5 starsComfy and Cozy
I love this swaddle for my little. The double zipper is amazing for middle of the night changes. I've tried it with arms in and out, and both fit well. My child just prefers arms out! This is a great option at a lower TOG as the weather gets warmer. Feels like it will last a long time and be passed to another kid!
- Kara B.Verified Buyer5/6/25ReviewingCocoon Swaddle Bag 1.0 TOG WillowRated 5 out of 5 starsSo soft
Beautiful swaddle, my baby sleeps so wonderfully in these. The material is so soft too.