A secure, multi-functional swaddle and sleep sack 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: 26 June 2025
- 30 day returns & exchanges
- Leia J. C.Verified Buyer6/16/25ReviewingCocoon Swaddle Bag 2.5 TOG Oatmeal MarleRated 4 out of 5 starsGreat quality. Runs small
My baby would never accept swaddling so we moved into these straight away. Had a size 000 and has fit him since week 2. These run on the smaller side so our little man has almost outgrown at 6 weeks old. Very expensive but will keep for next bubb
- Hanna H.Verified Buyer6/12/25ReviewingCocoon Swaddle Bag 2.5 TOG DaisiesRated 5 out of 5 starsLove
I love it. My baby loves it. Its great.
- Nicole G.Verified Buyer6/9/25ReviewingCocoon Swaddle Bag 2.5 TOG DaisiesRated 3 out of 5 starsGreat product
Great product. My daughter sleeps well in these. I find it stops her startle reflex and she sleeps better
But…. Do not put these in your dryer. It will shrink them. I unfortunately made this mistake