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*
- Courtney6 months agoReviewingSleep Onesie 1.0 TOG Grey MarleRated 5 out of 5 stars5 Stars
Purchased this for my 5 month old, we never swoddled her. We tried the closer convertible bag suit but because she moved so much at night, when we woke up she ended up with both her legs in one leg hole.
This suit is a great option and seems to be going the trick.
- Demi1 year agoReviewingDisney Sleep Onesie 1.0 TOG PrincessRated 5 out of 5 starsPerfect
Perfect, love the short sleeves. The leg cuffs are snugg enough to stay in place all night, so even tho its huge it fits fine and will for ages!!
- Clara1 year agoReviewingDisney Sleep Onesie 1.0 TOG Toy StoryRated 5 out of 5 starsGreat product
It has been a great purchase. So far so good for our little one