Sleep Sack 1.0 TOG Sleeved Willow
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 Sack (formerly Jersey Sleep Sack)
Imperial Size Chart
| ergoPouch Size
(same as size) |
Pouch Length (inch) | Child Weight (lb) | Child Height (inch) |
|---|---|---|---|
| 3-12M (000-1y) |
31.5" | 13 - 22lb | 24.4 - 29.9" |
| 8-24M (00-2y) |
35.4" | 18-31lb | 26.8 - 36.2" |
| 2-4Y | 41.3" | Follow Height Markers | 36.2 - 42.5" |
Metric Size Chart
| ergoPouch Size
(same as size) |
Pouch Length (cm) | Child Weight (kg) | Child Height (cm) |
|---|---|---|---|
| 3-12M (000-1y) |
80cm | 6-10kg | 62-76cm |
| 8-24M (00-2y) |
90cm | 8-14kg | 68-92cm |
| 2-4Y | 105cm | Follow Height Markers | 92-108cm |
Our Sleep Sack is a baby and toddler sleeping bag designed for arms-out sleepers (usually from around 3 months of age). The 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 and height 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.
- Free delivery on orders over $70*
- Estimated dispatch: 12 March 2026
- 30-day returns and exchanges
- Cassidy W.Verified Buyer2/27/26ReviewingSleep Sack 1.0 TOG Sleeved DragonfliesRated 3 out of 5 starsToo warm
I have sworn by Ergopouch since my first was born, but I'm quite disappointed with this purchase. I bought this because lighter sleeping bags with sleeves apparently don't exist anywhere except here, and I just wanted something for my son to wear in mild weather that would cover his arms. However, this is very fluffy and fleecy on the inside, so he might as well be wearing a winter jumper to bed! (It's also not 100% cotton unlike most of Ergopouch's range, which means he gets even sweatier.)
Having said that, he loves the pattern I guess 🤷🏼♀️
EUergopouch US3/5/26Hi Cassidy,
Thank you so much for taking the time to share your feedback.
We're sorry to hear that you found the 1.0T sleeping bag too warm. The 1.0T is actually the warmer option within our summer range, with the 0.2T being the coolest and lightest choice. The 1.0T features a soft fleece underside ( with zero filling) and has been independently tested to provide warmth in room temperatures of approximately 20-24 degrees. If your little one's room tends to sit above this range, the 0.2T would likely be a more suitable option for a cooler and more comfortable sleep.
We'd also like to clarify the fabric composition. All of our products are made from organic fibres, with the exception of the 1.0T Jersey fabric. This fabric is crafted from 55% organic cotton and 45% bamboo viscose. This blend is necessary to achieve the level of stretch required for the 1.0T design, while still maintaining a soft and breathable feel. All fabric composition information is provided on our website.
We always recommend checking the room temperature and dressing your little one accordingly, as comfort can vary by individual preferences and environments. If you'd like any assistance choosing the most suitable option for your space, our team would be more than happy to help.
- Cherise J.Verified Buyer2/6/26ReviewingSleep Sack 1.0 TOG Sleeved DragonfliesRated 5 out of 5 starsIt has sleeves!
I really love having a 1 TOG option with sleeves. This is the latest in a variety of sizes and weights of sleep sacks and we love them all. It’s great to keep our toddler cozy without having to worry about blankets falling off.
- navjit b.Verified Buyer1/27/26ReviewingSleep Sack 1.0 TOG Sleeved WillowRated 5 out of 5 starsSleeping bag
Very good quality
