11 Best Onesies for Adults to Wear to Stay Warm in 2024
Keep the winter chill (and huge heating bills) at bay with the best, snuggliest onesies on the market.
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Onesies used to be something only mums with newborns got excited about. But that’s all changed with the growing popularity of onesies for adults. And while it sounds like we’re talking baby clothes, that hasn’t stopped thousand of Australians from taking to onesies like ducks to water.
And what’s not to love? They’re comfy, easy to wear – and so warm, they can save you hundreds on heating bills. One outfit that does it all.
There’s much excitement brewing about the first ever Oodie Onesie, which I was lucky enough to put it to the test. I have to say, I’m in love. Soft, cosy and super warm, it was perfect for lounging around at home and it made me feel like I had my own personal heater.
That’s not to say onesies are only to be worn while relaxing at the home, curled up on the couch. Although that sounds absolutely amazing. Now there are all sorts of onesies, from those stylish enough to wear out and about, to onesies designed as activewear, to some you can wear during the warmer months.
Whatever you want to do in your onesie, it’s all about finding an all-in-one outfit that you can throw on and go and offers absolute comfort.
We’ve gone through all the onesies available in Australia and rounded up all the best options available this season to suit a range of looks and budgets, so get ready to enter your onesie-wearing era.
OUR TOP PICKS
BEST OVERALL ONESIES
The Oodie Onesie, $99 (was $119) at The Oodie
Why I love it: Warm and cosy with a fitted shape
What to consider: Not sherpa lined like the original Oodie
Materials: Plush polyester | Size: S/M to M/L | Care: Machine washable
Tried and tested by Susannah Hardy, Parenting Shopping Writer
This latest creation from The Oodie is set to become your new best friend. Much like the original Oodie, except the Onesie covers up your legs as well.
I had the opportunity to trial The Oodie’s new Onesie and I love it. Made from soft and plush fabric, it’s like velvet against your skin. And unlike the sherpa-lined Oodie, this ensemble is lightweight as well as easy to wear and move around in. The first time I put it on, I melted into the softness and felt instantly warm and cosy. I also found it a snap to pull on and zip up. There are elasticated cuffs to trap the warmth and at the wrist, the cuff feature a hole for the thumb, creating a fingerless glove situation. Ideal if, like me, you get cold hands while tapping on the keyboard. I also love the adjustable waist for a more custom in fit. Plus, there’s no need to worry about taking off the onesie whe going to the bathroom as there’s a convenient “butt flap” feature.The perfect lounging or work-from-home ensemble.
Just Love Holiday Onesie, from $78.86 at Amazon Australia
Why we love it: Fun patterns and cute pompom detail
What to consider: Prices vary between colours and sizes
Materials: Plush fleece | Size: XS to XXL | Care: Machine washable
What You Need To Know
This ultra soft and cosy onesie is made of plush fabric and features a sherpa fleece-lined hood with cute pompoms on the draw cord. There are side pockets and elasticated cuffs for trapping the warmth – and a host of fun designs to choose from including hearts and different coloured checks.
Amazon shoppers rave about it, with one leaving a review that said, “I loved these pjs, they’re super comfortable great quality and super warm!” Another wrote, “Really cute. Sizing is true. Super soft and cosy. Love this!”
BEST BUDGET ONESIES
Unicorn Tie Dye Onesie, $39.99 (was $49.99) at City Beach
Why we love it: The bright pattern and unicorn detail on hood
What to consider: Fastens up with buttons
Material: Polyester | Size: S to XL | Care: Hand wash and dry flat
What You Need To Know
This fleecy onesie from City Beach comes in at a great budget-friendly price, not to mention an eye-catching design with its bright, happy tie dye print. It features long arms and legs, a hood and side pocket. Best of all, it has super fun unicorn ears and a horn on its hood, plus a cute unicorn tail on its behind.
Black Lips Print Long Sleeve Onesie, $24.50 (was $66) at Pretty Little Things
Why we love it: Sleek design with cheeky pattern
What to consider: Thinner style, suitable as pyjamas
Materials: Polyester, elastane | Sizes: XS to L
What You Need To Know
This stretchy onesie is ideal for but both lounging at home and wearing to bed. It doesn’t offer fleecy warmth but its sexy figure-hugging style and cute lips motif makes it a onesie
you absolutely have to have. Soft, comfy, easy to move around in, it’s also perfect for doing nothing at all but snuggling up in bed in, too. It’s also on sale, making it more affordable too.
BEST FOOTED ONESIES
Forever Lazy Footed Adult Onesie, from $76, at Amazon Australia
Why we love it: It keeps all of you warm, including your feet
What to consider: Customers report that sizing is large, so you might need to size down.
Materials: Polyester fleece | Size: XXS to XXL | Colour: Over 30 patterns and colours | Care: Machine Washable
What You Need To Know
Made from super cosy anti-pill fleece, this onesie will keep you snug and warm in winter. Especially with the added bonus of enclosed feet so you can be completely covered – but as they’re detachable, you can also take them off if you want to be feet-free. Other key features include side pockets, a hood and rear opening so you don’t have to completely undress on a cold winter’s night to go to the bathroom. There are heaps of patterns and colours to choose from, even options to suit seasonal holidays like Christmas!
There are literally thousands of reviews for this onesie. One customer wrote, “This onesie is exactly what I was looking for. I wanted something with feet and it's a huge bonus that you can take the feet off if you don’t want to wear them or if you need to wash them separately …”
Another commented, “The product is absolutely what I want! So convenient for wearing at home!”
BEST STYLISH ONESIES
Cotton On Body Ultra Soft Full Length Long Sleeve Onesie, $24 (was $59.99) at THE ICONIC
Why we love it: Activewear you can wear all the time
What to consider: Getting in and out of it
Materials: Polyester, elastane | Size: 6 to 14 | Colour: Cedar brown
What You Need To Know
This super stylish and popular onesie from Cotton On Body makes fab activewear and is great as loungewear too. You can pop it on the days when the gym is on the agenda, but also style it up if you have other places to be. Or, you could simply wear as a base and layer with a jacket, jumper, skirt or wrap. Available in black or brown, this is a must-have wardrobe item this winter.
“What a lovely, warm and stylish onesie!” wrote one five-star reviewer. “You can throw over a fur or puffer jacket & go do coffee.”
Another said, “Very soft, tight fit and gives me the extra snatched look love it!!!”
BEST NOVELTY ONESIE
Marvel Minions Rise Of Gru Adult Unisex Jumpsuit Dress Up Costume, $75 at OZSALE
Why we love it: Fun unisex Minions design
What to consider: This is better suited for a dress-up occasion
Materials: Polyester | Size: Small, standard and extra large | Colour: Yellow/blue
What You Need To Know
If you need a onesie for an event or dress-up party, there are plenty of characters, animals and themes to choose from. We particularly love this unisex Minions onesie in the character’s iconic yellow and blue. It features a hood with digitally printed Minions eyes and goggles as well as a foam backed 3D tuft of hair at top. Fun, funny and cosy too.
BEST SPORTY ONESIES
Ribbed Osaka Catsuit, $139.99 (was $199) at The Upside
Why we love it: All-in-one activewear ensemble with adjustable straps
What to consider: Best suited to winter workouts
Material: Recycled polyamide, elastane | Size: XXS to L | Care: Gentle cold machine wash
What You Need To Know
This is a stunning catsuit onesie with adjustable straps, stylish low back design and a slightly flared leg. Super stretchy fabric provides the give and support you need during your workout, while offering absolute comfort and moisture wicking properties. Plus, it can be easily styled with a gorgeous knit, puffer or hoodie.
Men’s Tracksuit Jumpsuit, $51.69 (was $103.30) at Light In The Box
Why we love it: Cool-looking comfort
What to consider: May be too warm for cardio exercise
Material: Stretch cotton | Size: S to 3XL | Care: Machine washable
What You Need To Know
This ultra comfy all-in-one tracksuit is perfect for sporty types. Made of cosy, breathable stretch cotton, this convenient outfit features long arms and sleeves, an easy front zipper, snugly hood and four large pockets – and there are five chic tones to choose from. Customers have bought these to wear as pjs as well as activewear and the feedback has been extremely positive (from women as well as men).
One shopper said, “Fast delivery, quality for the price, totally okay and comfortable on the skin.” Another said, “Bought these for pjs, they are comfortable and super warm, 4 big pockets.”
BEST SUMMER ONESIE
The Oodie Geo Shapes Romper, $79 (was $99) at The Oodie
Why I love it: The silky and buttery fabric
What to consider: Don’t need to wear its sash tie to bed
Materials: 97 per cent bamboo cotton | Size: S-M, M-L | Care: Machine washable
Tried and tested by Susannah Hardy, Parenting Shopping Writer
Another new creation from the team at The Oodie, the Geo Shapes Romper is more like a relaxed and fun summer ensemble than sleepwear – yet its silky feel is perfect for a blissful night of slumber. It features short legs and arms with a front zipper, hood, side pockets and sash tie waist. I was worried it might be to hot for sleeping, but the bamboo cotton is lightweight, cool and breathable. It also has a buttery feel that’s heavenly against your skin. For someone like me, who spends a lot of time in pjs and loungewear, it’s a welcome addition to my wardrobe. Except my 12 year-old has now fallen in love with it, so I probably won’t see it again. Although that’s a great review in itself.
BEST KIDS ONESIES
Novelty Onesies for boys and girls, $18.20 (was $26) at Best & Less
Why we love it: Budget-friendly price
What to consider: These are selling out fast
Materials: Polyester coral fleece | Size: 3 to 7 | Care: Follow instructions on label
What You Need To Know
These onesies are super cute and perfect for keeping your little ones warm this winter. Even the fussiest of kids who refuse to wear a jumper, will not hesitate in pulling on one of these – the challenge will be getting them to take it off at bathtime! Made from cosy coral fleece, they’re snug, comfy and feature various novelty details, depending what your kid is into at the moment.
WHAT TO CONSIDER WHEN BUYING A ONESIE
We took the following factors into consideration when selecting the onesies for this list:
Fabric: There is some variation in onesie fabric. Most winter onesies are made of plush or fleecy polyester which is warm and cosy, while others made of cotton are more breathable, which is ideal for sleeping.
Fit: Does your onesie feel comfortable to wear? You need a relaxed, comfortable fit for lounging about and one that also allows for easy movement.
Design: Onesies come in all sorts of designs, patterns and colours to choose from. Plus, there are plenty of cute and cosy animal and novelty options.
Features: Consider different features such as pockets, hood, enclosed feet and elasticated cuffs.
Care: Onesies definitely need to be washed, especially if you wear them all the time. Make sure to read the care instructions as they can differ for each onesie. Some are machine washable, some need only a cold water or delicate cycle, while others musts be hand washed only.
Price: Onesies vary from under $20 to over $200. You don’t need to spend a fortune on a onesie, but it comes down to what you need it for. If you’re wearing it all the time, perhaps working from home, you may want a more luxe option. However, if it’s for a one-off party or event, then you can find fun budget-friendly options that won’t break the bank.
HOW WE CHOOSE OUR PRODUCTS
Our team of experienced writers spend hours researching products to include in articles. We find out what factors make a good product by talking to experts, reviewing test results and analysing thousands of customer reviews.
FREQUENTLY ASKED QUESTIONS
CAN I WEAR MY ONESIE IN PUBLIC?
According to my teenage daughter, you definitely can. And to back this up, we saw a 20-something old woman wearing a cosy onesie walking to the train station just the other day. Of course, my daughter said, “See, you can totally wear a onesie out.” Great news for me and onesie weavers the nation over.
CAN I WEAR MY ONESIE TO BED?
Yes, this is ultimately what they are designed for, however if you’re a hot sleeper (like me), just make sure you don’t overheat in the middle of the night. Many are made from polyester, which is soft and warm but not always breathable, so nights in these onesies might get a bit sweaty. Onesies made from breathable fabrics such as cotton and bamboo might be better for bedtime wear.
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