Baby Sully Onesie

£34.99

  • Made from: flannel, perfect for cool nights
  • Style: blue body with purple spots, Sully hood with small horns, embroidered eyes and a smiling face
  • Comfort: roomy for maximum comfort, with long elastic cuffs, zip closure practical for dressing a child with ease
  • Versatility: naps, Pixar-themed photos, chilly mornings, first Halloween
  • Washing: machine washable
  • 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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  • Made from: flannel, perfect for cool nights
  • Style: blue body with purple spots, Sully hood with small horns, embroidered eyes and a smiling face
  • Comfort: roomy for maximum comfort, with long elastic cuffs, zip closure practical for dressing a child with ease
  • Versatility: naps, Pixar-themed photos, chilly mornings, first Halloween
  • Washing: machine washable

A trip into the magical monster factory in a Newborn Sully Onesie

Inspired by the fantastic world of Monsters, Inc., this Sully onesie for babies is designed to wrap your child in softness. This wonderfully soft one-piece pyjama set turns bedtime into an adventure while keeping your baby nice and warm.

Thanks to its flannel texture, this one-piece wraps your child in a cocoon of comfort. The long elastic cuffs keep the warmth in without squeezing the wrists. The design inspired by Sully, the adorable blue monster, lets your baby feel as reassured as under their favourite blanket.

Infant Sully Onesie leaves a baby in the hands of the blue monster

With these baby Sully pyjamas, parents fall for a unique look that blends whimsy and well-being. The snug hood makes this nightwear as fun as it is adorable in your child’s wardrobe. Thanks to its roomy fit, this garment offers plenty of freedom of movement, ideal for long hours of sleep or play.

Turn bedtime into a special moment. Even better, this one-piece is easy to slip on thanks to its zip closure. It comes in sizes from 3 to 30 months to fit every baby. Add this irresistible piece to your basket.

Enjoy Pixar adventures as a family

A parent can match the little one with the Sully onesie for a truly shared look. The baby Mike Wazowski onesie is the ideal companion for a baby photo duo. 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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Baby size chart (measurements in cm)

SIZEHEIGHTCHESTSHOULDER WIDTHSLEEVE LENGTHONESIE LENGTH (EXCLUDING HOOD)
3 - 6 months50 - 6556 - 59252556 - 58
6 - 9 months65 - 75622727 - 2862 - 63
9 - 12 months75 - 8565 - 682929 - 3168
12 - 18 months85 - 9068 - 723131 - 3373 - 74
18 - 24 months90 - 9571 - 803333 - 3678 - 79
24 - 30 months95 - 10574 - 863535 - 3983 - 84