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: 14 January 2026
- Extended Holiday Returns until Jan 31st
- Claudia J.Verified Buyer1/6/26ReviewingCocoon Swaddle Sack 1.0 TOG Ocean BlueRated 5 out of 5 starsThe best sleep suit
We found these cocoon suits the best for swaddling. Our daughter always got her hands out of the blanket swaddles, so we had to find a swaddle suit and these have worked perfectly. It’s also much quicker than blanket swaddling. She’s slept through the night pretty consistently since early on too, partially thanks to these suits keeping her arms in.
- Erin C.Verified Buyer1/4/26ReviewingCocoon Swaddle Sack 1.0 TOG DragonfliesRated 5 out of 5 starsThe best toy hands down
Used daily and now transition to arms out- best sleeping sack for this period 3 months age. Has been washed 100 times and martial still great - no linting
- Gwen B.Verified BuyerWhat is your favorite feature of the Cocoon Swaddle Bag? Quality construction, Soft material, Convenient double-zipper, Arm poppers for transition, Organic cotton1/2/26What is your favorite feature of the Cocoon Swaddle Bag? Quality construction, Soft material, Convenient double-zipper, Arm poppers for transition, Organic cottonReviewingCocoon Swaddle Sack 1.0 TOG WillowRated 5 out of 5 starsLove this Product
Absolutely love this product!
Just perfect x
How easy was it to use the Cocoon Swaddle Bag for your baby?
1
2
3
4
5
Very difficult Extremely easy
How useful do you find the two-way zipper for nappy changes?
1
2
3
4
5
Not useful at all Extremely useful
How would you rate the softness and overall fabric quality?
1
2
3
4
5
Very poor Excellent
Do you find the stretchy fabric flexible enough for your baby’s natural movement?
•
Not really Somewhat Yes, definitely
Did using the Cocoon Swaddle Bag make a difference in your baby’s sleep?
•
No noticeable difference Helped them sleep more soundly Helped them sleep longer
Did you find the TOG options helpful in choosing the right Cocoon Swaddle Bag for your room temperature?
•
Not really Somewhat Yes, definitely
How helpful do you find the snap buttons for arms-in to arms-out transition?
1
2
3
4
5
Not helpful at all Extremely helpful
How helpful did you find the free room thermometer “What to Wear” guide?
1
2
3
4
5
Not helpful at all Extremely helpful
How do you find the sizing of the Cocoon Swaddle Bag?
•
Runs Small True to Size Runs Large
