Sleep Suit Sack 3.5 TOG Sage
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 and height to find the most appropriate and safe size for them.
Imperial Size Chart
| ergoPouch Size
(same as size) |
Pouch Length (inch) | Sleeve length (inch) | Child weight (lb) | Child Height (inch) |
|---|---|---|---|---|
| 3-12M* (000-1y) |
31.5" | 11" | 13-26lb | 24.4 - 33.1" |
| 8-24M (00-2y) |
35.4" | 12.6" | 18-31lb | 26.8 - 36.2" |
| 2-4Y | 41.3" | 14.2" | Follow height markers | 36.2 - 42.5" |
| 4-6Y | 47.2" | 16.9" | Follow height markers | 42.5 - 47.2" |
| 6-8Y | 53.1" | 19.7" | Follow height markers | 47.2 - 51.2" |
*Previously size 2-12 month
Metric Size Chart
| ergoPouch Size
(same as size) |
Pouch Length (cm) | Sleeve length (cm) | Child weight (kg) | Child Height (cm) |
|---|---|---|---|---|
| 3-12M* (000-1y) |
80cm | 28cm | 6-12kg | 62-84cm |
| 8-24M (00-2y) |
90cm | 32cm | 8-14kg | 68-92cm |
| 2-4Y | 105cm | 36cm | Follow height markers | 92-108cm |
| 4-6Y | 120cm | 43cm | Follow height markers | 108-120cm |
| 6-8Y | 135cm | 50cm | Follow height markers | 120 - 130cm |
*Previously size 2-12 months
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.
- Free delivery on orders over $70*
- Estimated dispatch: 06 March 2026
- 30-day returns and exchanges
- Kelly2/28/26ReviewingSleep Suit Sack 2.5 TOG BerriesRated 5 out of 5 stars5 Stars
Top notch quality, will probably order another
- Robyn P.Verified Buyer2/26/26ReviewingSleep Suit Sack 3.5 TOG BerriesRated 5 out of 5 starsBrilliant design
What a perfectly clever design! These suits will keep bub warm and comfortable in our coming cooler months, including during pram and car rides, and make life so much easier for her parents! Well done, ergopouch!
- colleen n.Verified Buyer2/12/26ReviewingSleep Suit Sack 3.5 TOG WillowRated 1 out of 5 starsDisappointed in return policy
I was excited to get your product, but unfortunately it won’t work for my situation. I would have thought that you guys would supply me with a return shipping label. I was not and it cost me 18.00 to ship it back to you. I regret ordering it entirely!! You should not expect customers to pay that much for returns
