Adults Flannel Kigurumi — COOKIE MONSTER & ELMO Cosplay Costume Onesies Pajamas

Wrap yourself in playful comfort with our Adults Flannel Kigurumi featuring COOKIE MONSTER and ELMO — the perfect unisex onesie for cosplay, sleepovers, Halloween, conventions, and cozy nights in. Soft flannel, oversized fit, and an adorable character hood make this a standout piece for men and women who love fun loungewear and authentic Sesame-inspired style.

• Soft flannel fabric for warmth and all-night comfort
• Character hood with 3D face details for instant cosplay appeal
• Roomy, unisex cut — comfortable for men and women
• Full-length front closure for easy on/off
• Handy side pockets for phone, snacks, or small essentials
• Elastic cuffs at wrists and ankles to keep the cold out
• Machine washable for easy care and repeated wear

Why you’ll love it

• Perfect for cosplay and costume parties: instantly recognizable COOKIE MONSTER or ELMO styling that stands out at Halloween, themed events, and fan conventions.
• Ideal loungewear and sleepwear: plush flannel keeps you cozy while binge-watching, lounging, or sleeping.
• Great gift idea: a fun, wearable present for friends, family, or anyone who grew up loving these iconic characters.

Fit & sizing

• Designed with a relaxed, oversized silhouette for layering and freedom of movement.
• Available in multiple adult sizes (check the size chart on the product page to choose the best fit).
• If you prefer a snugger fit, consider sizing down; if you want extra room for layering, size up.

Care instructions

• Machine wash cold with like colors
• Tumble dry low or hang to dry
• Avoid bleach and high heat to preserve colors and detailing

Add fun to every night — grab your COOKIE MONSTER or ELMO flannel kigurumi today and bring comfort, character, and cosplay-ready charm to your wardrobe.