SpongeBob Onesie

£44.99

  • Made from: plush flannel, ideal for thermal comfort
  • Details: yellow body with sponge holes, brown shorts and a red tie printed on the front, SpongeBob hood with big embroidered eyes
  • Comfort: roomy fit with a hood and long elasticated sleeves
  • Occasions: Halloween, cartoon marathons, group costumes, lounging
  • Washing: machine washable, built for regular wear
  • Ultra-soft fabric | Warm and comfortable
  • Pyjamas and costume | Two in one
  • Any occasion | Bedtime, parties, film nights
  • Gift-ready | One they’ll actually wear
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Size Chart

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Complete your look

SpongeBob Onesie

SpongeBob Onesie

£44.99

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  • Made from: plush flannel, ideal for thermal comfort
  • Details: yellow body with sponge holes, brown shorts and a red tie printed on the front, SpongeBob hood with big embroidered eyes
  • Comfort: roomy fit with a hood and long elasticated sleeves
  • Occasions: Halloween, cartoon marathons, group costumes, lounging
  • Washing: machine washable, built for regular wear

Women’s SpongeBob Onesie to become the square yellow hero of Bikini Bottom

Imagine yourself wrapped in the softness and warmth of a SpongeBob onesie for adults after a long day. This one-piece is ideal for fans of all ages, including devotees of Patrick and Gary. With its bright colours and cheerful design, it perfectly captures the famous square yellow character of Bikini Bottom.

Its roomy fit ensures total freedom of movement, letting you relax or move around without restriction. The playful design and careful finishes add a touch of cheer to your evenings and your moments of relaxation at home or under the starry sea of your dreams.

A deep dive towards Bikini Bottom in a Men’s SpongeBob Onesie

The adult SpongeBob onesie lets you relive the adventures of the little yellow sponge and his sea friends while enjoying unmatched comfort. Its long sleeves and plush hood will keep you nice and warm on chilly nights, and its snuggly feel will make you forget all your worries.

Slip on this one-piece garment and drift down to the bottom of the ocean. Whether for your next pyjama party or simply to treat yourself to moments of pure cosiness, this outfit is a must-have for anyone looking to combine style, comfort and love for SpongeBob.

Join SpongeBob’s crew as a family

Dress a smaller member of the family in the kids SpongeBob onesie for a matching look at home. Anyone who loves this design will also enjoy the Minion onesie. Finally, the adult onesies collection covers every other design for grown-ups.

Frequently Asked Questions

They’re made to keep you warm on the sofa through autumn and winter, so yes, they’re cosy. The relaxed fit lets air move around, though, so you won’t get that stuffy feeling you get from tight pyjamas.
Machine wash at 30°C on a gentle cycle. Turn them inside out and pop them in a mesh laundry bag to protect the hood. Skip the tumble dryer and the iron. They air-dry quickly and fluff right back up on their own.
Yes, every onesie we sell 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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Adult size chart (measurements in cm)

SIZEHEIGHTCHESTSHOULDER WIDTHSLEEVE LENGTHONESIE LENGTH (EXCLUDING HOOD)
S144 - 1531164650127 - 130
M154 - 1631204853137 - 140
L164 - 1731245056147 - 150
XL174 - 1831285259157 - 160