Kids Sully Onesie

£39.99

  • Material: ultra soft, plush flannel for ultimate comfort
  • Design: hood featuring the blue face, purple spots and horns, scaled tail at the back
  • Comfort: long sleeves, relaxed fit and a rear zip fastening
  • Ideal for: bedtime, sleepovers, Disney film nights, dressing up
  • Care: machine washable and stays soft wash after wash
  • 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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Kids Sully Onesie

Kids Sully Onesie

£39.99

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  • Material: ultra soft, plush flannel for ultimate comfort
  • Design: hood featuring the blue face, purple spots and horns, scaled tail at the back
  • Comfort: long sleeves, relaxed fit and a rear zip fastening
  • Ideal for: bedtime, sleepovers, Disney film nights, dressing up
  • Care: machine washable and stays soft wash after wash

Boys Sully Onesie opens the door to the world of Monsters Inc

Give your little one a moment of softness and adventure with our Sully onesie for kids, inspired by the famous blue character. This cosy, colourful all-in-one invites your little monster to turn into a giant cuddly toy while staying warm. They will love slipping into this snug cocoon, perfect for chilly nights.

Picture your child as a mini version of the gentle giant in a romper that brings the monster world to life. Its design features irresistible details such as a hood with the familiar face and horns, plus a scaled tail at the back for the full effect.

Discover the Monstropolis factory in a Girls Sully Onesie

Turn bedtime into a real ritual of comfort and joy with these kids Sully pyjamas. Made from soft flannel, they wrap your little one like a favourite teddy for a sense of warmth and security. Your child will be ready to drift into their sweetest dreams in something as adorable as it is comfy.

Do not miss the chance to add this unique piece to the wardrobe. Order this premium flannel romper now to bring comfort and a dash of fun to bedtime. Its playful design suits quiet evenings on the sofa just as well as peaceful nights of sleep.

The whole family at the factory

The baby Sully onesie lets a newborn sibling share the same soft outfit. The kids Mike Wazowski onesie is a great pick for a brother, sister or best friend. The Disney onesies collection gathers the rest of the cast.

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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Kids size chart (measurements in cm)

SIZECHILD'S HEIGHTCHESTSHOULDER WIDTHSLEEVE LENGTHONESIE LENGTH (EXCLUDING HOOD)
3 - 4 years88 - 10288414182 - 85
5 - 6 years103 - 11592424392 - 95
7 - 8 years116 - 125944347102 - 105
9 - 10 years126 - 137964449112 - 115
11 - 12 years138 - 148984554122 - 125