The best kids' onesies to buy for toddlers to teenagers
- (opens in new tab)
- (opens in new tab)
- (opens in new tab)
- Sign up to our newsletter Newsletter

Sign up to the GoodTo Newsletter. You can unsubscribe at any time. For more information about how to do this, and how we hold your data, please see our privacy policy
Thank you for signing up to . You will receive a verification email shortly.
There was a problem. Please refresh the page and try again.
Kids' onesies are a must-have for any household. Perfect for lounging around in at home, chilling before bedtime and getting cosy after bathtime.
Onesies are the perfect solution for cosy storytelling, playtime, rainy days indoors and movie marathons.
Look for soft, fluffy fleece or sweatshirt-style fabric and cuffed wrists and ankles for maximum comfort. Animal and Disney character styles will double up as great fancy dress outfits, providing hours of entertainment. Easy zip fastenings make for convenient, speedy changes and are easy for little ones to put on and take off themselves - perfect for potty training and beyond. Pair your child's onesie with our pick of the best kids' pyjamas (opens in new tab) and best kids' dressing gowns. (opens in new tab) A kid can never have too many onesies but it could be time to organise your kid's warbrobe (opens in new tab) if you're wondering how to store them.
1. Kids' Astronaut Sweat Onesie
Sizes: 3-12yrs
Encourage and inspire their out-of-this-world dreams with this astronaut-inspired onesie. With appliqué space-themed badges, your astronaut-in-training will love either relaxing or playing make-believe in it. Made from cosy sweat-jersey with a kangaroo pocket for all their essentials, the zip-through front ensures fuss-free dressing and ribbed cuffs lock in warmth on chillier nights.
VIEW AT JOHN LEWIS | £22-26 (opens in new tab)
2. Personalised Zip-up Onesie
Sizes: 6mths-13yrs
A great design for both toddlers and teens, this stylish, slim-fit onesie is made from 100% luxury cotton. Personalise with your choice of a broad range of colours and your child’s name on the front and the back. There are two font styles to choose from and a choice of five letter colours. Each onesie is hand-printed at a studio in Lancashire and has a kangaroo pocket and little ears on the hood (up to 3 years only).
VIEW AT NOTONTHEHIGHSTREET.COM | £29.95 (opens in new tab)
3. Kids' Unicorn Fleece Onesie
Sizes: 3-14yrs
This lilac and star-print, fleece unicorn onesie will have little ones ready to gallop off to the land of make-believe. The cosy hood with a metallic, 3D unicorn horn, handy kangaroo-style pocket and a fuss-free, zip-through fastening for easy changes and toilet trips makes this a purchase you won’t regret.
VIEW AT JOHN LEWIS | £22-26 (opens in new tab)
4. Kids Grey Dinosaur Onesie
Sizes: 9mths-6yrs
Made from machine-washable, soft jersey for maximum comfort, easy movement, and snuggly warmth, the onesie is styled in grey with a monochrome, all-over print of their favourite dinosaurs. Finished with light grey cuffs on both the sleeves and legs, a front zip fastening, and a hood with neon yellow dinosaur detailing, it's perfect for getting them settled into an evening at home.
VIEW AT MATALAN | £10-£12 (opens in new tab)
5. Minnie Mouse Onesie
Sizes: 2-6yrs
A must-have for any little Minnie Mouse fans. This gorgeous spotted fleece onesie has an appliqué of our favourite mouse on the front, complete with Minnie's iconic bow and ears sewn onto the hood. It's also made from 100% recycled materials, which makes it even sweeter!
VIEW AT NEXT | £20 (opens in new tab)
6. Snug Sleep All-in-one
Sizes: 3 (opens in new tab)- (opens in new tab)12yrs
The cool print of this ridiculously stretchy and comfortable all-in-one will have kids queuing up for bedtime, while the button-down front means it's a cinch to put on. Thanks to the cosy fit and elasticated cuffs and brushed-cotton inner, you can avoid the cold on chilly mornings too
VIEW AT BODEN | £25-£29 (opens in new tab)
7. Peppa Pig Fleece Onesie
Sizes: 12mths-4yrs
Featuring all their favourite characters, little piggy Peppa, Candy Cat and Teddy, fans of Peppa Pig will love this soft fleece onesie. Made from 100% recycled, soft fleece and machine washable at 40°C, the onesie also features cuffed sleeves and legs for the ultimate snugly fit.
VIEW AT BRAND THREADS | £20 (opens in new tab)
8. Kids' Camo Fleece Onesie
Sizes: 3-12yrs
Kids can blend in as they melt into the sofa with this soft-fleece finish all-in-one. The style benefits from a zip-through front that makes for easy dressing, a comfy hood and ribbed cuffs to keep the warmth in. Plus with kangaroo pockets, they can keep toys, snacks and other essentials close to hand.
VIEW AT JOHN LEWIS | £18 (opens in new tab)
9. L.O.L. Surprise! Onesie
Sizes: 2-10yrs
This long-sleeve, fleece tyle is perfect for young fans of the collectable L.O.L. dolls. It features favourite dolls from series 1: Queen Bee, Super B.B., Merbaby, Diva, Fancy, and Rocker. Top tip - this style comes up small so buy one size larger than usual.
VIEW AT AMAZON | £16.95 (opens in new tab)
10. Big Snuggle Suit
Sizes: 18mths-12yrs
Positively blooming with clever features to help keep your little one warm and snuggly, this all-in-one is spun from super soft organic cotton fleece and includes a comfy hood with a cosy lining for extra warmth, plus stretchy rib cuffs to keep out the cold. The handy zip fastening makes dressing and potty/toilet trips easy-peasy. Designed to fit comfortably over a layer of clothing, it's great for popping over PJs when lounging at home or warming up after swimming or bath time.
VIEW AT FRUGI | £44 (opens in new tab)
11. Kids' Bunny Onesie
Sizes: 3-12yrs
Made from a super-soft and machine-washable textured fleece, this bunny-inspired onesie features a zip through the front for fuss-free dressing plus a hood with 3D bunny ears and embroidered face on the hood. Part loungewear, part costume, what better way to hop to having fun?
VIEW AT JOHN LEWIS | £22 (opens in new tab)
-
-
When are the next Commonwealth Games and how often are they held?
Find out when are the next Commonwealth Games and where they will be hosted, as the Birmingham 2022 Games come to an end
By Ellie Hutchings • Published
-
Prince William's embarrassing 'Never Have I Ever' confession moment in front of ex and Kate Middleton
Prince William played the secret spilling game during his university days and revealed some truths.
By Selina Maycock • Published
-
These Decathlon wetsuits for kids are a bargain at £49.99
Decathlon has knocked 16% off these popular wetsuits for kids
By Heidi Scrimgeour • Published
-
Philips 4-In-1 Healthy Baby Food Maker Review
A tall and sturdy food maker with same-jar functionality but various flaws
By Grace Holliday • Published
-
Tommee Tippee Quick Cook Baby Food Maker Review
This compact baby food maker is ideal for very small kitchens and practical for occasional use
By Grace Holliday • Published
-
Baby Brezza Deluxe One Step Food Maker Review
Looking for a compact baby food maker that won't take over your kitchen counter? This is the one for you
By Grace Holliday • Last updated
-
Best cot mattresses 2022: top picks for babies and toddlers
We asked a panel of parents to put the latest cot mattresses to the test - here's what they thought
By Charlotte Duck • Published
-
This Aldi wooden kitchen is the perfect Christmas gift for kids
Get your Christmas shopping sorted early - these cute Aldi wooden toys are an absolute bargain
By Heidi Scrimgeour • Published
-
The TOY Dyson Supersonic Hair Dryer is here and kids are going to love it!
It's the hair drier we all want for Christmas - and now the kids can get their mitts on a toy version too!
By Heidi Scrimgeour • Published
-
Vital Baby Nourish Prep & Wean Review
When it comes to baby food makers, this is our best budget buy
By Grace Holliday • Published