Cocoon Swaddle Bag 2.5 TOG Dragonflies
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.
| ergoPouch Size
(same as size) |
Pouch Length (cm) | Child Weight (kg) | Child Height (cm) |
|---|---|---|---|
| 00000 | 47cm | 2-3kg | 50cm |
| 0000 (Newborn) |
52cm | 3-4kg | 55cm |
| 0-3M (000) |
60cm | 3-6kg | 62cm |
| 3-6M* (00) |
70cm | 6-8kg | 62-68cm |
| 6-12M (0) |
76cm (0.2/1.0 TOG) 80cm (2.5 TOG) |
8-10kg | 68-76cm |
*Previously size 2-6 months
^Metric Size Chart for ergoPouch Cocoon Swaddle Bag
Learn how to swaddle your baby for safety using the Cocoon Swaddle Bag
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.
See full size guide for all products
Imperial Size Chart for ergoPouch Cocoon Swaddle Bag
|
ergoPouch Size
(same as size) |
Pouch Length (inch) | Child Weight (lb) | Child Height (inch) |
|---|---|---|---|
| 00000 | 18.5" | 4-7lbs | 19.7" |
|
0000 (Newborn) |
20.5" | 7-9lbs | 21.7" |
| 0-3M (000) |
23.6" | 7-13lbs | 24.4" |
| 3-6M* (00) |
27.6" | 13-18lbs | 24.4"-26.8" |
| 6-12M (0) |
29.9" (0.2/1.0 TOG) 31.5" (2.5 TOG) |
18-22lbs | 26.8"-29.9" |
*Previously size 2-6 months
- Free delivery on orders over £65
- Estimated dispatch: 19 March 2026
- 30-day returns and exchanges
- Joan S.Verified Buyer3 minutes agoReviewingCocoon Swaddle Bag 2.5 TOG Oatmeal MarleRated 4 out of 5 starsSleep sack
Works great. Love the option for arms free or keeping the arms in.
- Yennis C.Verified Buyer4 days agoReviewingCocoon Swaddle Bag 2.5 TOG DaisiesRated 5 out of 5 starsVery product
I love this item. It’s nice I felt my baby is safer with it.
- Laura L.Verified Buyer3 weeks agoReviewingCocoon Swaddle Bag 2.5 TOG SageRated 5 out of 5 starsLoves it!
My baby loves the warm cocoon that the ergopouch provides. We keep the house cold and she sleeps snuggly and warm in this.