The Sleep Suit sack is an award-winning, multi-functional sleep sack and Sleep Suit with legs in one, for babies, toddlers and kids.
Size Guide
Sleep Suit Sack
Please use your child's weight to find the most appropriate and safe size for them. The Sleep Suit Sack 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 Sacks 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 $70*
- Estimated dispatch: 18 July 2025
- 30 day returns and exchanges for full priced products
- Natasha B.Verified Buyer7/14/25ReviewingSleep Suit Sack 3.5 TOG WillowRated 5 out of 5 starsSoft
Been a fan of the brand since my son was born. Brought new and 2nd hand ones. The legs options is perfect so he can move around a little safer, without tripping but we all know sleep sacks kids work out how to walk in them anyway. It's soft, keeps him warm. Easy to convert. Love the brand.
- Kirsty T.Verified Buyer6/12/25ReviewingSleep Suit Sack 3.5 TOG DragonfliesRated 5 out of 5 starsA great investment
The product is a great design and quality, we have used Ergopouch for years.
- Katherine J.Verified Buyer6/1/25ReviewingSleep Suit Bag 3.5 TOG Petit PretzelRated 5 out of 5 starsSleeping bag
Really good quality and lovely and warm.