Alien Onesie
Alien Pajamas
Alien Onesie
Alien Onesie Pajamas

Alien Onesie

$49.99

  • Fabric: fleece to stay nice and warm
  • Design: bright green from hood to ankles, black almond eyes on the hood
  • Fit: roomy, offering optimal freedom of movement
  • Occasions: sci-fi marathons, Halloween, conventions, lazy Sundays
  • Care: machine washable, easy upkeep
  • Ultra-soft fabric | Warm and comfortable
  • Pajama and costume | Two in one
  • Any occasion | Bedtime, parties, movie nights
  • Gift-ready | One they’ll actually wear
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  • Fabric: fleece to stay nice and warm
  • Design: bright green from hood to ankles, black almond eyes on the hood
  • Fit: roomy, offering optimal freedom of movement
  • Occasions: sci-fi marathons, Halloween, conventions, lazy Sundays
  • Care: machine washable, easy upkeep

Women's Alien Onesie to embrace sci-fi spirit with irresistible UFO charm

Want to bring a touch of originality to your relaxing moments under the covers? Our alien onesie for adults is the UFO of cozy fashion. With its look inspired by the unknown, its snuggly comfort and its cosmic style, you will never go unnoticed again.

Made of ultra-soft fleece, this sleepwear transports you into a science fiction world. Its snuggly hood wraps you in warmth, while its roomy cut guarantees perfect freedom of movement. You will love slipping into this onesie after a long day for long hours of relaxation, nice and warm.

A resolutely cosmic look straight from the mothership in a Men's Alien Onesie

Picture yourself bundled up in this adult alien onesie, ready to explore extraterrestrial space from your couch. Its long elasticized sleeves, which keep the warmth in without squeezing your wrists, make this onesie a must-have for anyone who loves a snuggly night in.

Invite the unknown into your nighttime wardrobe. Order our one-piece pajama now and treat yourself (or your loved ones) to the most cosmic experience there is. Your new cozy ally is just a few clicks away. Bring science fiction all the way into your sleepwear and turn every evening into a journey worthy of the best UFO movies.

Give your relaxing moments a brilliant boost

For a themed pair with a friend, the Toy Story Alien onesie is the natural companion. More creatures from beyond gather in the Halloween onesies collection.

Frequently Asked Questions

It's made to keep you warm on the couch through fall and winter, so yes, it's cozy. The relaxed fit lets air move around, though, so you won't get that stuffy feeling you get from tight pajamas. It comes into its own as soon as the weather turns.
Machine wash cold on the gentle cycle. Turn it inside out and toss it in a mesh laundry bag to protect the hood. Skip the dryer and the iron. It air-dries fast and fluffs right back up on its own.
Yes, every onesie we make is unisex. The roomy cut works for men and women alike, our kids' styles fit girls and boys just the same, and our baby sizes are cut the same way for everyone. Just check the size chart to find your fit.
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  • Ships in 1-2 business days
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