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 | Newborn | 0-3M | 3-6M* | 6-12M |
|---|---|---|---|---|
| Same as size | 0000 | 000 | 00 | 0 |
| Pouch length (cm/inch) | 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 | 3-4kg / 7-9lb | 3-6kg / 7-13lb | 6-8kg / 13-18lb | 8-10kg / 18-22lb |
| Child height (cm/inch) maximum | 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: 11 February 2026
- 30-day returns and exchanges
- Odile A. D.Verified Buyer3 minutes agoReviewingCocoon Swaddle Bag 1.0 TOG DragonfliesRated 5 out of 5 starsMy favorite swaddle
Color is beautiful. Material is amazing and size is true to size. Truly one of my go to swaddle that keep my 6weeks old warm and comfortable
- Melissa R.Verified Buyer1 week agoReviewingCocoon Swaddle Bag 1.0 TOG WillowRated 5 out of 5 starsMy son’s favorite
We were gifted a box with a bunch of different swaddles and this was the only one my son liked so naturally I bought a few more! We love these pouches and can’t wait to continue to have our son grow in them while getting the best sleep.
- Rima A.Verified Buyer1 week agoReviewingCocoon Swaddle Bag 1.0 TOG DaisiesRated 5 out of 5 starsArms in or out
My baby loves arms out but when she’s overstimulated arms in is what she prefers. This sleep suit give us both options and she loves it. It’s super easy for me as well to unclip and take her arms out once she’s asleep. Purchased a second one as well