Kids Cookie Monster Onesie

£39.99

  • Material: bright blue fleece
  • Details: hood with two googly eyes on top, front pocket embroidered COOKIE MONSTER with a plush cookie
  • Easy on: button front, elastic ankle cuffs, loose cut for play
  • Best for: Halloween, pyjama parties, Sesame Street fans, cartoon mornings
  • Care: 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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Size Chart

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Kids Cookie Monster Pyjamas

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  • Material: bright blue fleece
  • Details: hood with two googly eyes on top, front pocket embroidered COOKIE MONSTER with a plush cookie
  • Easy on: button front, elastic ankle cuffs, loose cut for play
  • Best for: Halloween, pyjama parties, Sesame Street fans, cartoon mornings
  • Care: machine washable

Girls Cookie Monster Onesie for midnight snacks on Sesame Street

Me want cookie. Every kid who ever laughed at that line gets to say it in this Cookie Monster onesie for kids, cut from bright blue fleece from the hood to the ankles. Two big googly eyes wobble on top of the head, a row of blue buttons closes the front, and a front pocket embroidered with the monster’s name holds a plush cookie ready to be devoured. The elastic ankles keep everything in place through a full evening of crumbs, giggles and one more episode before bed.

C is for cosy in a Boys Cookie Monster Onesie

Sesame Street has taught generations to count, and these kids Cookie Monster pyjamas add a new lesson, counting down to bedtime with a smile. The soft fleece keeps the chill out on winter evenings, the loose cut lets kids run, roll and raid the kitchen, and the buttons are easy enough for small hands to manage alone. A Halloween costume parade at school, a pyjama party or a snowy Saturday morning cartoon session, the blue monster is ready for all of it. Add it to the basket and watch the cookie jar empty faster.

Bring the rest of the street home

Grown-ups can match their child with the Cookie Monster onesie for a family photo. For a playful pair of siblings, the kids Elmo onesie is the natural companion. Finally, browse the whole kids onesies collection for more playful costumes.

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