Baby and toddler sleeping bag designed for arms-out sleepers (usually from around 3 months of age).
Size Guide
Sleeping Bag
Our Sleeping Bag is a baby and toddler sleeping bag designed for arms-out sleepers (usually from around 3 months of age). The Sleeping Bag has a slim-fit, stretchy design similar to that of a swaddle and is recommended as baby's 'first sleeping bag' after the swaddling phase is over. Please use your child's weight to find the most appropriate and safe size for them. A sleeping bag 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 delivery on orders over £65
- Estimated dispatch: 20 December 2025
- Extended Holiday Returns until 31st Jan
- Nicole S.Verified Buyer3 minutes agoReviewingSleeping Bag 3.5 TOG Oatmeal MarleRated 5 out of 5 stars3.5 TOG Sleep Sack
We purchased this sleep sack in hopes that it would help baby sleep better overnight and it did just that. The sleep sack itself is well made. I was worried the zipper being front and center would be an issue because our baby likes to sleep on his stomach but no issues! He's never slept better.
- Genevieve C.Verified Buyer13 hours agoReviewingSleeping Bag 3.5 TOG DragonfliesRated 5 out of 5 starsAlways reliable
Baby has never had any issues with the products, this is his third sleep sack and we never have any concerns. Wish it was slightly cheaper so I could stock up more.
- Charles H.Verified Buyer3 days agoReviewingSleeping Bag 3.5 TOG Sleeved WillowRated 4 out of 5 starsGreat
Great item, only complaint is the tag is in a spot on the neck where it could get itchy. Would make more sense to put it inside the body of the pouch.