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White Witch from Narnia

Alix Earle killed her first Heidi Klum Halloween Party costume as the White Witch from Narnia. And considering the White Witch lives in a constant winter, she's gotta be bundled up 24/7, 365. To copy this look on your own, simply wear a white dress and a big white fluffy coat—then watch Alix Earle's transformation on TikTok for some inspo.

SHOP ICE CROWN

A Furry Monster from Where The Wild Things Are

What's more cozy than a really furry (giant) coat? All you need is some claw gloves (horns, optional) and you got yourself a costume that'll work in v cold temps.

SHOP COAT

Circus Ringleader

This circus costume (which includes a cropped jacket, a button-down shirt, hot pants, tights, gloves, and tall leather boots) is perfect for shedding layers if you get hot inside the party, but you need to bundle up when you head out.

SHOP JACKET

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Autumn Elf

This adorable elf can be easily recreated with things you already own in your closet. Grab some knee-high boots, a white dress, and some ~elf-like jewelry~ and then pop on over to Amazon for some ears to complete the look.

SHOP EARS

Little Red Riding Hood

A long red cloak will keep you covered in colder temps, and if you want to make it a couples costume, then your S.O. can go as the wolf. Pro tip: Add some black tights for extra warmth!

SHOP CLOAK

The Joker

This warm Halloween costume is perfect for October if you're willing to cover your face in clown makeup. This iconic Joker look features a full-blown red suit, and you can easily wear extra layers underneath if it's a bit chillier where you are.

SHOP SUIT

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The Mad Hatter

The Mad Hatter doesn't go anywhere without his classic cloak and obvi his giant hat. To cute it up, wear your favorite pair of over-the-knee boots to keep your legs covered up and warm.

SHOP CLOAK

Patrizia Reggiani from House of Gucci

When it comes to Patrizia Reggiani, you know she's rockin' the most elaborate of outfits. Get yourself a red mini blazer dress, and then cover up with a really cozy faux fur coat.

SHOP RED DRESS

Margot Tenenbaum from The Royal Tenenbaums

Margot's signature coat looks like the warmest thing ever. Put on some eyeliner, a hair barrette, and a Lacoste polo, and then top it off with loafers.

SHOP COAT

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Maleficent

Between the feather neck, the floor-length gown, and the headpiece, this costume will keep you warm from head (horns?) to toe.

SHOP ACCESSORIES

Storm from X-Men

When in doubt, go with a latex bodysuit if you need a costume that'll make you look and feel hot. Just don't ask me how to go to the bathroom in it.

SHOP BODYSUIT

Cruella de Vil

Cruella's signature look would not be complete without a big, fluffy fur coat, which is good news for you if you're trying to stay super cozy in your costume.

SHOP COAT

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Astronaut

The ultimate costume for staying warm, this astronaut suit can even be topped off with a helmet to keep your whole body feeling nice and toasty.

SHOP JUMPSUIT

Leopard

For a full-coverage 'fit that still looks adorable, dress up as a leopard, complete with a spandex bodysuit and thigh-high black boots.

SHOP BODYSUIT

Candy Wrapper

For a costume that's funny, punny, and ridiculously easy (not to mention cozy warm), this costume checks all the damn boxes.

SHOP SWEATSUIT

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Ghost

If you wanna be the comfiest (and warmest) person on Halloween, then throw on a Halloween-themed onesie and call it a day.

SHOP ONESIE

Daenerys Targaryen from Game of Thrones

You'll be cozy AF if you dress up in one of Daenery's floor-length fur coats (and if your partner wants to be equally toasty, then have 'em dress up as Jon Snow).

SHOP COAT

Britney Spears from "Oops!... I Did It Again"

You could dress up as Britney a dozen different ways, but one of the easiest (and warmest) routes to take is her shiny red unitard from "Oops!...I Did It Again."

SHOP UNITARD

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Wendy Torrance from The Shining

Winter in the Colorado Rockies is pretty brutal, so it makes sense that Wendy Torrance has got a snuggly warm 'fit with plenty of layers.

SHOP SHIRT

Natasha Romanoff/Black Widow

Again, a tight leather outfit might be the perfect warm costume if it's freezing on Halloween this year.

SHOP BODYSUIT

Siena Gagliano is the associate editor at Cosmopolitan, where she primarily covers beauty, fashion, travel, and lifestyle. Wanna know how to get the best brows of your life? Gotchu. What about how to find the best fashion deals of the season, the softest sheets on the market, or exactly how to use retinol without irritating your skin? Check, check, and check. Before joining Cosmopolitan, Siena was a writer at Bustle and several other media outlets. As her 2024 goal, she has vowed to find the best (extra) dirty martini NYC has to offer—and yes, that means ~attempting~ to try every cute cocktail spot in the city (hit her up with some recs, pls). Follow Siena on Instagram for a behind-the-scenes look at that magazine life.

Corinne Sullivan is an Editor at Cosmopolitan, where she covers a variety of beats, including lifestyle, entertainment, relationships, shopping, and more. She can tell you everything you need to know about the love lives of A-listers, the coziest bedsheets, and the sex toys actually worth your $$$. She is also the author of the 2018 novel Indecent. Follow her on Instagram for cute pics of her pup and bébé. 

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