Onesie
The warmth of a onesie combined with the originality of a costume, for every occasion
- A wide range, from baby to adult
- Ultra-soft, comfortable fabrics
- The perfect gift for your loved ones
Free
Delivery
1-2 Day
Dispatch
Secure
Payment
Support
7 Days a Week
Free
Delivery
1-2 Day
Dispatch
Secure
Payment
Support
7 Days a Week
OUR BESTSELLERS
Our most-loved onesies, chosen by customers for comfort and style
Which one will you fall for first?
Our Collections
WOMEN’S ONESIES
MEN’S ONESIES
GIRLS ONESIES
BOYS ONESIES
BABY ONESIES
SHARK ONESIES
Dive into a cosy shark onesie with a toothy hood and dorsal fin. Soft fabric and three ocean shades, grey, blue or pink, for a look both fearsome and adorable.
STITCH ONESIES
Blue body, big ears and a little mischief. Our Stitch onesies capture Experiment 626 in every detail, with Angel in pink for a perfectly matched pair.
CHRISTMAS ONESIES
Slip into the festive spirit with a cosy Christmas onesie. Santa red, playful elf or cheerful reindeer, each one-piece wraps you in soft fabric from hood to ankle.
HALLOWEEN ONESIES
A costume by night, your favourite pyjamas all season. Skeleton, bat or pumpkin, our Halloween onesies pair a hood full of character with warm, snuggly fleece.
WHY A ONESIE?
Looks like a costume, feels like pyjamas.
Soft fleece, roomy fit, zero effort. Throw one on for a sleepover, a festival, a fancy dress party, PJ day or a chilly Bonfire Night. Then wear it straight to bed. That’s the whole point.
A style for everyone. New designs every season.
Cuddly animals and magical unicorns, in sizes for adults, kids and babies. We add new designs all year round, so there’s always something new to discover.
The gift they’ll actually wear.
Warm, soft and impossible to take off. It works for birthdays, Christmas morning, Christmas Jumper Day or Secret Santa, and it beats another candle every time. Add matching slippers and gloves to finish the look.
ABOUT us
Onesies are all we do.
Half loungewear, half costume. Ours get worn on lazy Sundays, at theme parties, on Halloween night, and everywhere in between.
Plush fleece that actually keeps you warm, not just something that looks cozy in photos.
Add matching slippers and gloves to finish the look. Easy to gift, hard to take off.
FAQ
For all other destinations, delivery charges are calculated at checkout.
In accordance with the law, you have 14 days from receipt of your order to exercise your right to cancel.
To do so, please contact our customer service team at: contact@my-onesie.co.uk
Check out in just a few clicks
Add your favourites to your basket using the icon in the top right corner of your screen, fill in your details and place your order.
- Free delivery
- 1-2 day dispatch
- Secure payment
- Support 7 days a week