The Sleep Onesie is a TOG-rated sleeping bag alternative, designed to be worn on its own during sleep or with a Layer/PJs underneath for warmth and comfort.
Size Guide
Sleep Onesie
Please use your child's height to find the most appropriate and safe size for them. The Sleep Onesie should be fitted around the neck to avoid your child slipping through. 2.5 TOG and 3.5 TOG Sleep Onesies should not be used in a 5-point harness or car seat for safety reasons.
| ergoPouch size | 6-12M | 12-24M | 2-3Y | 4-5Y | 6-8Y | 8-10Y | 10-12Y |
|---|---|---|---|---|---|---|---|
| Same as size | 0-1y | 1-2y | 2-3y | 4-5y | 6-8y | 8-10y | 10-12y |
| Pouch length (cm/inch) | 74cm / 29.1" | 84cm / 33.1" | 88cm / 34.6" | 98cm / 38.6" | 110cm / 43.3" | 120cm / 47.2" | 130cm / 51.2" |
| Chest width (cm/inch) | 27.5cm / 10.8" | 30.5cm / 12" | 32cm / 12.6" | 35cm / 13.8" | 38cm / 15" | 40cm / 15.7" | 42cm / 16.5" |
| Child height (cm/inch) | 68-84cm / 26.8 - 33.1" | 76-92cm / 29.9 - 36.2" | 92-100cm / 36.2 - 39.4" | 108-115cm / 42.5 - 45.3" | 120-130cm / 47.2 - 51.2" | 130-140cm / 51.2 - 55.1" | 140-150cm / 55.1 - 59.1" |
- Free delivery on orders over $100*
- Estimated dispatch: 21 June 2025
- 30 day returns & exchanges*
- Cecilia T.Verified Buyer1/10/25ReviewingSleep Onesie 0.2 TOG Grey MarleRated 5 out of 5 starsGift for grand-daughter
My grand-daughter loves these Onesies! They get washed every day and are good quality. They are ideal for cool summer days.
- Clara10/9/23ReviewingDisney Sleep Onesie 0.2 TOG Toy StoryRated 5 out of 5 starsGreat!
Have use it a few times but it will be definitely be a good suit to use once it gets hot. So far it has been good
- Nicole12/5/22ReviewingDisney Sleep Onesie 0.2 TOG Toy StoryRated 1 out of 5 starsDisappointed
Sleep bags are a couple months old at most, not worn every night and are already splitting at the seams. Had the same experience with thicker togs as well. Won’t purchase again