Baby Mario Onesie

£34.99

  • Material: flannel, ideal for sensitive skin and long cosy hours under the covers
  • Look: red top with blue dungarees and yellow buttons, red cap hood with the letter M
  • Fit: roomy fit and long elasticated sleeves to keep a baby warm
  • Versatility: naps, gaming-themed photos, chilly mornings, first Halloween
  • Care: machine washable, with colours that last through many washes
  • 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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  • Material: flannel, ideal for sensitive skin and long cosy hours under the covers
  • Look: red top with blue dungarees and yellow buttons, red cap hood with the letter M
  • Fit: roomy fit and long elasticated sleeves to keep a baby warm
  • Versatility: naps, gaming-themed photos, chilly mornings, first Halloween
  • Care: machine washable, with colours that last through many washes

The Mushroom Kingdom full of gold coins in a Newborn Mario Onesie

Dear parents, have you ever pictured your baby in a world full of magic and adventure? With the Mario onesie for babies, turn your little one’s bedtime into an incredible adventure through the Nintendo kingdom. Designed to captivate your child’s attention, these pyjamas promise soft nights and heroic dreams.

The colourful design starring Mario will fascinate your baby and spark their imagination. The softness of the flannel fabric ensures optimal comfort, ideal for the sensitive skin of little ones. With its playful look, this kigurumi is an open door to the fantastic world of video games. It comes in sizes from 3 to 30 months.

Infant Mario Onesie for Nintendo adventures alongside Mario and his whole team

Awaken your child’s sense of fun with these exceptional baby Mario pyjamas. Every detail has been designed to ensure warm, secure nights. Imagine the morning smiles after a night spent alongside Nintendo’s favourite hero, a source of happiness for your baby.

Give your child better nights. Order this outfit now for moments of joy and comfort. It is the perfect choice to enrich your little one’s night-time wardrobe while introducing them to the enchanting world of Mario and his friends.

Rescue Princess Peach together as a family

Grown-ups can join the fun in the Mario onesie, made in the very same style. The baby Luigi onesie shares the same gentle spirit for a second little outfit. Finally, browse the whole baby onesies collection for more tiny outfits.

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.
My Onesie tote bag

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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