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) 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 $70*
- Estimated dispatch: 19 July 2025
- 30 day returns and exchanges for full priced products
- Lily M.Verified Buyer7/9/25ReviewingCocoon Swaddle Sack 2.5 TOG WillowRated 5 out of 5 starsLove it!
Great fit for our 4kg newborn - easy to get on with her knees up. Happy to have found something warm that’s not got synthetic materials. We paired it with the cardigan so we can have her arms up or out and free. It’s much better than the older, 2nd hand ergo pouch a friend gave us, which was a smaller, tighter, shorter fit
- Penelope S.Verified Buyer7/7/25ReviewingCocoon Swaddle Sack 3.5 TOG WillowRated 5 out of 5 starsWinter warmth
Bought this for my grandson for the coming winter. Gorgeous, thick & lovely towelling lining.
Colour is very calming. Well worth the price:)
- Rainey N.Verified Buyer7/1/25ReviewingCocoon Swaddle Sack 2.5 TOG DaisiesRated 5 out of 5 starsLove this cocoon
My newborn loved these cocoons she slept better in this brand than others