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4.9 (779 reviews)

Big Mouth Monster Pajamas

$36
$72
Save 50% off

Thick & Soft Fleece

Roomy Unisex Fit

Warm & Cozy

Fun Monster Design

🟢 In stock - Limited units available

Global Shipping

Free global delivery & returns.

30 day- guarantee

30- day guarantee

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Stay warm and comfortable in this playful Big Mouth Monster Onesie, made from soft polyester coral fleece with a thick, cozy feel for autumn and winter. The roomy one-piece design provides plenty of freedom to move, while the oversized monster face and fun front pocket make it perfect for lounging, pajama parties, themed events, or matching with your partner.

PLEASE NOTE
Please check the size chart carefully before ordering. Measurements are taken manually and may vary by approximately 3–5 cm. If you are taller, heavier, or prefer a looser oversized fit, we recommend choosing one size up.

Material

Polyester Coral Fleece

Fit

Relaxed / Oversized

Best For

Lounging, Parties & Couples

  • Orders can be cancelled within the first 6 hours after purchase. After this period, your order may be sent to our warehouse for packing and shipment and can no longer be cancelled. A 10% cancellation fee based on your total order value will apply to cover management, processing, and transaction costs.
  • If you entered the wrong shipping address or made a mistake with your order, please contact us within 24 hours of purchase at support@glendro.com. We recommend checking your order confirmation email immediately after placing your order to make sure all information is correct.
  • We accept returns or replacements for items that arrive damaged, defective, incorrect, or with missing parts. Requests must be made within 15 days of delivery. Please email support@glendro.com with photos of the item, package, and shipping label showing the issue. Customers are responsible for the return shipping fee.
  • Once your returned item is received and inspected, we will email you with the approval or rejection of your refund. If approved, the refund will be issued to your original payment method within 2–5 business days. Your bank or credit card provider may take additional time to post the refund. If you still haven’t received it, please contact support@glendro.com.
  • Need to update your shipping or order details? Contact us at support@glendro.com within 24 hours of purchase. Please check your confirmation email to make sure all information is correct.
  • Orders are processed within 2–5 business days. Once shipped, your tracking number will be sent via email. If you don’t receive it after 5 business days, please contact support@glendro.com.
  • Once your order ships, you’ll receive a Shipping Confirmation email with your tracking number. You can track your package through USPS Tracking or via this link: https://www.trackingmore.com/track
  • Your estimated delivery time includes 2–5 business days for processing, plus shipping:
    - United States: 10–25 business days (usually 12–14)
    - Canada & Europe: 15–40 business days
    - Australia & New Zealand: 15–45 business days
    - Mexico, Central & South America: 20–40 business days
    - Middle East: 20–40 business days
    Estimated Delivery = Order Date + 2–5 Business Days Processing + Shipping Time
    Please note that tracking updates may take an additional 2–7 days to appear during transit.
  • If your order doesn’t arrive within 60 days, you’ll receive a 100% refund for the missing item. Contact us at support@glendro.com and we’ll investigate within 3–5 business days and provide a replacement if applicable.
  • Import taxes, duties, or customs fees may apply depending on your country and are the customer’s responsibility. These charges are determined by your local customs office and are not covered by us.
  • Please double-check your shipping address before placing your order. We are not responsible for packages sent to an incorrect address provided by the customer. Orders that are refused or undeliverable after multiple delivery attempts may not be eligible for a refund.

Loved by Thousands of Happy Customers

Anna R.

I recommend getting it one size larger, or two sizes larger if you're tall;  love it - great quality

Jennifer K.

I recommend the product and the supplier. I will buy again when needed

Emily R.

Soft, warm, and way roomier than I expected. We’ve basically been living in them at home.

Kenny L.

So comfy and oversized. Perfect for a fun night in with my bestie! 

Customer Testimonials

Turn Cozy Nights Into Fun

Stay warm, get comfortable, and add a little humor to your downtime. With its ultra-soft fleece, roomy fit, and playful monster design, this onesie is made for cozy nights, lazy weekends, pajama parties, and matching moments with someone special.

loved how soft and cozy it feels for lounging at home.

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said the roomy fit made it comfortable and easy to move around in.

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loved the fun monster design and said it made their cozy nights more entertaining.

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Based on customer feedback.

Compare features

With other brand similar product

Our Product

Others

Fun Monster Design

Thick & Soft Fleece

Roomy Unisex Fit

Cute Character Pocket

Perfect for Couples

Answer your questions

  • It’s made from soft polyester coral fleece designed to feel plush, warm, and comfortable.

  • Yes. The relaxed, roomy design is suitable for both men and women.

  • Check our size chart based on your height and weight. If you’re between sizes or prefer an oversized fit, choose one size up.

  • Yes. The thickened fleece and full-length design provide extra warmth for lounging during cooler weather.

  • It’s great for home lounging, pajama parties, themed events, holidays, couples outfits, or just having fun at home.