There's a specific kind of happiness that comes from getting home, zipping yourself into a onesie and deciding the day is officially over. Our adult onesies are hooded, roomy and soft enough to sleep in and fun enough to wear to a costume party and totally get away with it.
Sizes S–XL | From $29.99 | Dispatched in 1–2 business days | Shipped Australia-wide
Adult onesies, sorted
Australian houses are famously bad at holding heat, and most of us don't have central heating. A onesie fixes that without touching the power bill; one piece from ankle to hood means no gap at the waist and nothing to kick off the bed at 2am.
They're also the easiest adult costume going. No sewing, no accessories, and you stay warm all night. Book Week, Halloween, hens and bucks nights, Christmas morning, Chrissy in July, a giant pig or dragon does the heavy lifting for you.
The cut is unisex, so everyone picks from the same designs. Most adult styles have a matching kids version too, if you want the whole household looking equally daft.
Sizing: go by height, not your usual size
|
Adult size |
Suits height |
|
S |
155cm – 160cm |
|
M |
160cm – 165cm |
|
L |
165cm – 170cm |
|
XL |
170cm – 175cm |
Between two sizes, or planning to wear it over clothes? Size up. Full details in our size guide.
FAQs
What is an adult onesie?
A one-piece hooded pyjama covering you from ankles to neck, usually with a full-length front zip. The animal-character versions are called kigurumi. Australians wear them as sleepwear, loungewear and costumes.
What size adult onesie should I buy?
Go by height, not your usual clothing size. S suits 155–160cm, M suits 160–165cm, L suits 165–170cm, XL suits 170–175cm. Between two sizes, take the larger one.
Are adult onesies unisex?
Yes. Ours are cut the same for everyone, just pick the size matching your height.
Can I wear a onesie over my clothes?
Yes, if you size up. It'll take a t-shirt and light pants underneath, which helps when you're wearing it as a costume.
Are onesies too hot to sleep in?
For most Australians they're winter sleepwear, great from about May to September down south. In a Queensland summer, you'll cook.
Do you deliver Australia-wide?
Every state and territory, including regional addresses. Dispatched from our Melbourne warehouse in 1–2 business days with tracking.
How do I wash it?
Cold gentle cycle, inside out, hung to dry in the shade. Skip the dryer and don't iron the hood or any ears, eyes or spikes.