The Sleep Suit Bag is an award-winning, multi-functional Sleeping Bag and Sleep Suit with legs in one, for babies, toddlers and kids.
Size Guide
Sleep Suit Bag
Please use your child's weight to find the most appropriate and safe size for them. The Sleep Suit Bag should be fitted around the neck and the armholes to avoid your child slipping through. In 'legs' mode, there should be enough length at the end of the suit to allow your child to move their feet freely. 2.5 TOG and 3.5 TOG Sleep Suit Bags should not be used in a 5-point harness or car seat for safety reasons.
| ergoPouch size | 3-12M | 8-24M | 2-4Y | 4-6Y | 6-8Y |
|---|---|---|---|---|---|
| Same as size | 000-1y | 00-2y | 2-4y | 4-6y | 6-8y |
| Pouch length (cm/inch) | 80cm / 31.5" | 90cm / 35.4" | 105cm / 41.3" | 120cm / 47.2" | 135cm / 53.1" |
| Sleeve length (cm/inch) | 28cm / 11" | 32cm / 12.6" | 36cm / 14.2" | 43cm / 16.9" | 50cm / 19.7" |
| Child weight (kg/lb) | 6-12kg / 13-26lb | 8-14kg / 18-31lb | Follow height markers | Follow height markers | Follow height markers |
| Child height (cm/inch) | 62-84cm / 24.4 - 33.1" | 68-92cm / 26.8 - 36.2" | 92-108cm / 36.2 - 42.5" | 108-120cm / 42.5 - 47.2" | 120 - 130cm / 47.2 - 51.2" |
*Previously size 2-12 months
- Free delivery on orders over £65
- Estimated dispatch: 16 December 2025
- Extended Holiday Returns until 31st Jan
- CFM v. d. W.Verified Buyer3 minutes agoReviewingSleep Suit Bag 3.5 TOG WillowRated 5 out of 5 starsBest sleeping bag ever
Best sleeping bag I’ve ever bought. It’s incredibly comfortable and warm, and the flexible arm openings make it so easy to get the arms in and out. Highly recommended.
- Leah R.Verified Buyer2 days agoReviewingSleep Suit Bag 2.5 TOG Fruit SaladRated 5 out of 5 starsLove
Such great quality and thoughtful design. The 2.5 tog is perfect for winter months when the bedrooms are chilly and has really improved baby’s sleep. The print is so cute and it washes really well. The smallest size fits our petite 13lb baby with plenty of room to last the whole season.
- Ieva V.Verified Buyer1 week agoReviewingSleep Suit Bag 3.5 TOG DaisiesRated 5 out of 5 starsNicely made
It has a luxorious feel to it. I wish the hands were deatchable but othwrwise its really cute. We sleeo in about 18-19 degrees and with a pyjamas under she is warm.