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 and height 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) | 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 delivery on orders over $100*
- Estimated dispatch: 05 January 2025
- 30 day returns and exchanges
- Annie1/2/23Rated 5 out of 5 starsBest sleep sack ever!
The only sleep sack my 3 month old likes! We tried them all and have become loyal to Ergo. Will repurchase as my baby sizes up!
- Maggie S.8/5/22Rated 5 out of 5 starsOur favorite sleep sacks!
We love these sleep sacks for our baby. The small size was one of the few brands that fit him as a newborn. They are warm, high quality and we like the option to swaddle the arms or leave them out. Highly recommend!
- Grace E.Verified Buyer7/15/22Rated 5 out of 5 stars5 Stars
Love that this isn’t bulky to wear but keeps baby snug