Cocoon Swaddle Sack 2.5 TOG Willow
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 Sack
Please use your child's weight and height to find the most appropriate and safe size for them.
Imperial Size Chart for ergoPouch Cocoon Swaddle Sack
|
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
Learn how to swaddle your baby for safety using the Cocoon Swaddle Sack
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.
See full size guide for all products
Metric Size Chart
| 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
- Free delivery on orders over $70*
- Estimated dispatch: 02 May 2026
- 30-day returns and exchanges
- megan j.Verified Buyer4/27/26ReviewingCocoon Swaddle Bag 2.5 TOG Petit PretzelRated 5 out of 5 starsSwaddle bag
Absolutely love it, baby sleeps so well in it
- KATHLEEN D.Verified Buyer4/20/26ReviewingCocoon Swaddle Sack 2.5 TOG Sweet OrchardRated 5 out of 5 starsCocoon swaddle sack 2.5 tog
All my grand littles have used the 2.5 togs and love them. We love that they at all cotton, excellent quality and the patterns are so cute. Best sleep sacks on the market in my opinion.
- Natalia B.Verified Buyer4/7/26ReviewingCocoon Swaddle Sack 2.5 TOG Sweet OrchardRated 5 out of 5 starsBeautiful!
We love all ergopouch products! This swaddle bag is amazing for autumn/winter. Soft and cozy both on the inside and outside. I love that you can have arms both in and out. It’s perfect!
