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: 08 December 2025
- Extended Holiday Returns until 31st Jan
- George S.Verified Buyer4 minutes agoReviewingCocoon Swaddle Bag 1.0 TOG Oatmeal MarleRated 5 out of 5 starsBest swaddle
I have been doing blanket swaddles which work well unless it is the middle of the night and I am too exhausted to function. I ordered a few other zipper and velcro swaddles that my baby didn’t like, until I found this one! It is sooo easy to use. Nighttime diaper changes are a breeze. I also love the snaps so I can easily get his arms out. I just ordered another warmer one so he can be cozier. This cocoon swaddle is the best and I would highly recommend!
- Jasmine C.Verified Buyer1 week agoReviewingCocoon Swaddle Bag 1.0 TOG DragonfliesRated 5 out of 5 starsLove love love
Has really helped with the startle reflex and sleeping in the bassinet as I have a very clingy baby
- LauraVerified Buyer1 month agoReviewingCocoon Swaddle Bag 1.0 TOG WillowRated 5 out of 5 starsThis sleep swaddle saved me!
I love this sleep sack swaddle. I was exhausted using regular blanket swaddles as my babe was breaking out of them and rewrapping was such a pain. Wish I had gotten one in the smallest size for when he was a newborn as he didn’t fit the 0-3 until a month or so. Had a summer baby so needed something light enough for my not well air conditioned room. The zip up is a game changer and the neck was small enough he couldn’t get his arms out. My babe wanted his legs closer to his body so I used a hair tie to take in the extra fabric until he got big enough. Amazing, would highly recommend!