Cocoon Swaddle Bag 1.0 TOG Dragonflies
One swaddle, 3 ways to wear - arms in, hands up, or arms out. The only swaddle to grow with your baby's startle reflex.
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: 05 April 2026
- 30-day returns and exchanges
- Steve C.Verified BuyerYesterdayReviewingCocoon Swaddle Bag 1.0 TOG Oatmeal MarleRated 5 out of 5 starsFantastic sleep sack
We have been using this sleep sack since our baby was about 3 weeks old. He loved to have his arms free of a swaddle, so this offered us the ability to calm and relax him while also letting his arms be free. I have already repurchased multiples of this in a bigger size, and plan to keep using this as our baby grows.
- Jayci U.Verified Buyer2 weeks agoReviewingCocoon Swaddle Bag 1.0 TOG DragonfliesRated 5 out of 5 starsMust have!
We LOVE these sleep sacks so much. They are so soft & comfortable and wash well.
- Zoe B.Verified Buyer2 weeks agoReviewingCocoon Swaddle Bag 1.0 TOG Oatmeal MarleRated 2 out of 5 starsSizing issue
I’ve written an email about my complaint over a week ago and no response back still