Baby and toddler sleep sack designed for arms-out sleepers (usually from around 3 months of age).
Size Guide
Sleep Sack (formerly known as the Jersey Sleep Sack)
Our Sleep Sack is a baby and toddler Sleep Sack designed for arms-out sleepers (usually from around 3 months of age). The Jersey Sleep Sack has a slim-fit, stretchy design similar to that of a swaddle and is recommended as baby's 'First Sleep Sack' after the swaddling phase is over. Please use your child's weight to find the most appropriate and safe size for them. A sleep sack should be well fitted around the neck and the armholes to avoid your baby slipping through. It should also be bell shaped in the bottom to allow for easy leg movement. Please do not size up to the next size until your child meets the weight requirement, for safety reasons.| ergoPouch size | 3-12M | 8-24M | 2-4Y |
|---|---|---|---|
| Same as size | 000-1y | 00-2y | 2-4Y |
| Pouch length (cm/inch) | 80cm / 31.5" | 90cm / 35.4" | 105cm / 41.3" |
| Child weight (kg/lb) | 6-10kg / 13 - 22lb | 8-14kg / 18-31lb | Follow Height Markers |
| Child height (cm/inch) | 62-76cm / 24.4 - 29.9" | 68-92cm / 26.8 - 36.2" | 92-108cm / 36.2 - 42.5" |
See full size guide for all products
- Free shipping on orders over $70
- Estimated dispatch: 25 February 2025
- 14 day returns and exchanges for full priced products
- Dani G.Verified Buyer2/21/25ReviewingSleep Sack 2.5 TOG Sleeved DaisiesRated 5 out of 5 starsBest sleep bag on the planet
We love our ergopouch sleep sack. My daughter is sleeping better since moving her to the full 2.5 tog sack. The extra warmth definitely makes a difference. I would highly recommend this sleep bag to anyone, it looks so cozy I wish I had one myself
- Stephanie P.Verified Buyer2/11/25ReviewingSleep Sack 2.5 TOG Sleeved WillowRated 5 out of 5 starsEvery baby needs this bag
This sleep bag is the ONLY bag that can keep a baby warm hand to foot, allow total freedom of the baby to move, and be completely unable to go over the babies face. My little one keeps his arms up to sleep and we’ve been using this bag since 12 weeks. The material will at best, come to his chin with his arms fully extended over his head. We LOVE this bag. Other bags always come up too high. And the quality is incredible! Thick and soft, heavy duty! He has pooped in it already and it washed so well!
- Charlotte M.Verified Buyer2/10/25ReviewingSleep Sack 2.5 TOG Sleeved Oatmeal MarleRated 5 out of 5 starsKeeps baby cozy in the Sierras!
We live up by Lake Tahoe and winters are cold. We hadn’t found the right solution to keep baby warm at night until we found Ergo sleep sacks. Now he is warm and cozy all night down to his toes! We have a 2.5 and 3.5 depending on how cold it is. Both are great.