SKU: 13710440993
monsters inc boo onesie adults

monsters inc boo onesie adults Sully and Mike Halloween Onesies – Sandman's Shop

Sale price$19.13 Regular price$21.26
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

monsters inc boo onesie adults Sully and Mike Halloween Onesies – Sandman's ShopUnleash your inner monster (in the friendliest way possible) with the Sully and Mike Halloween Onesies! Inspired by Pixars most lovable scare duo from Monsters, Inc., these soft and snuggly kigurumis are equal parts comfortable, hilarious, and oh so perfect for sleep, lounging, or causing a scene at your next costume bash. Designed for relaxed, playful nights in or unforgettable party entrances, these Halloween onesies are the ultimate way to match

Unleash your inner monster (in the friendliest way possible) with the Sully and Mike Halloween Onesies! Inspired by Pixar’s most lovable scare duo from Monsters, Inc., these soft and snuggly kigurumis are equal parts comfortable, hilarious, and oh-so-perfect for sleep, lounging, or causing a scene at your next costume bash.

Designed for relaxed, playful nights in or unforgettable party entrances, these Halloween onesies are the ultimate way to match with your bestie, boo, or fellow monster-in-crime. Choose between Sully’s iconic polka-dotted fuzz or Mike’s single-eyed charm – either way, you're winning Halloween. Bonus: with their zip-up design, getting in and out is a breeze (because nobody wants to wrestle with a costume when there’s candy to eat).

Key Features & Specifications

Material Ultra-soft Plush Fabric
Available Sizes S, M, L, XL, 2XL (Unisex Fit)
Closure Type Full Front Zipper
Designs Available Sully (blue with purple spots), Mike (green with big eyeball)
Best Use Halloween parties, costume events, sleepovers, movie marathons
Style Loose-fit kigurumi onesie

Size Guide

Size Fit Description
S Snug fit for a fun, playful look
M Slightly roomier for added comfort
L Relaxed fit, perfect for lounging
XL Generous fit for ultimate coziness
2XL Extra room for a laid-back experience

What It Helps With

  • Making Halloween actually comfortable
  • Giving you an excuse to wear pajamas in public
  • Transforming into your favorite monster without makeup or effort
  • Keeping you warm through spooky season (and snack-fueled Netflix marathons)

Why You Never Knew You Needed This

Ever tried finding a couples costume that’s cute, comfy, AND won’t require five layers or freezing your tail off? Yeah, us too. These Sully and Mike Halloween Onesies check every box. They're warm. They're weird. They're wildly lovable. And honestly? You'll probably end up wearing them all year long.

Ideal For You If You...

  • Want to win Halloween and stay warm
  • Prefer lounging to latex
  • Are a fan of Monsters, Inc. (or just giant eyeballs)
  • Need a costume that doubles as sleepwear and selfie gold
  • Believe every great friendship has one fuzzy blue giant and one goofy green bean

Care Instructions

Machine wash cold with like colors
Tumble dry low – or hang dry for fluff longevity
No bleach, no ironing – just monster love
Store in closet (or under bed if you’re feeling spooky)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 13710440993

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M
Verified Purchase
MarissaG
Birmingham, US
★★★★★ 5
My Son Can’t Get Enough of Who Would Win
Format: Hardcover
My four-year-old son is absolutely obsessed with the Who Would Win series! We really enjoy the interesting facts sprinkled throughout the chapters - it makes reading together both fun and educational. Since discovering these books, we’ve happily added more titles to our Who Would Win collection. Highly recommend for curious young readers!
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Reviewed in the United States on November 3, 2025
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Verified Purchase
Casie J D
Lowell, US
★★★★★ 5
Kids love it
Format: Hardcover
Very informative. Kids love this series.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
S
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Spoon
Whiting, US
★★★★★ 4
Great books, but the Rumble book is the best!
Format: Hardcover, Format: Hardcover
These books are great books and are filled with tons of mammal, animal, and insect facts. However, after buying several, I realized I was buying the wrong books. This is because we wanted the bracket based “who would win” books. They are the best ones! Apparently, the bracket-based books have “rumble” in the title. The pictures will show the difference. There are only two rumble books, 1 of which will be released Oct 7th.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2025
M
Verified Purchase
Morrison Fam
Birmingham, US
★★★★★ 5
Love these easy to read books.
Format: Hardcover
My kid is obsessed with these books. He will read these books so much that they wear out and I have to replace them. This is a great series of books for young readers. It's great for kids who also like would you rather. There are several books in this series and they are all worth buying.
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Reviewed in the United States on August 5, 2025
M
Verified Purchase
marvertom
Louisville, US
★★★★★ 5
It keeps them reading AND it keeps them occupied !
Format: Hardcover
My Grandkids LOVE these "Who-Would-Win" Series !! It keeps them reading AND it keeps them occupied !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026

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