GRT King Mattress Protector Waterproof Cooling Quilted Fitted Pad

Our review of the GRT King Mattress Protector finds it is best for parents, pet owners, and anyone protecting a pricey mattress who still wants a soft, breathable sleep surface. The single biggest reason to buy is the combination of a fully waterproof TPU backing with a 45% rayon from bamboo surface that keeps liquids away from the mattress while preserving a soft, cool feel. The protector is OEKO-TEX certified, machine washable, and built to fit deep mattresses up to 21 in, so it balances protection and comfort in everyday home use.

Key Features

• Waterproof TPU backing: A premium water-resistant membrane protects your mattress from sweat, urine, and accidental spills for reliable moisture defense.
• Rayon from bamboo surface: The 45% rayon blend delivers a soft, breathable surface that adds a light cushioning layer and helps surface cooling.
• Quilted construction: Quilting with alternative hollow cotton filling creates a plush, comfortable feel without heavy padding.
• OEKO-TEX certified: Certified standard 100 by OEKO-TEX ensures the protector contains no harmful substances, offering safer bedding for children and elders.
• Deep-fit design: Elastic skirt accommodates mattresses up to 21 in deep for a snug, stay-put fit on king size beds.
• Machine washable: Easy care on a gentle cycle and low-temp drying keeps maintenance simple for busy households.

Who It's For

This protector is ideal for families with young children, caregivers of elderly adults, and pet owners who need waterproof protection without the plasticky feel of vinyl. The bamboo-blend surface suits sleepers who want a softer, more breathable pad while still guarding a mattress against accidents and spills.

Shoppers who want a heavy, thick mattress topper for added firmness or therapeutic support should look elsewhere, since this product is designed primarily as a protective, cooling, quilted cover rather than a replacement for a mattress pad with high loft or orthopedic properties.

Pros & Cons

Pros

• Effective waterproof barrier from the TPU membrane protects mattress cores from fluids.
• Soft, cooling rayon from bamboo surface provides a comfortable, breathable sleep layer.
• OEKO-TEX certification reassures buyers concerned about chemicals and safety for family use.
• Deep pocket fit and elastic skirt work well on mattresses up to 21 in deep.

Cons

• Some users report variability in perceived waterproof performance and others note the pad is not thick, so it will not add significant cushioning.

Specifications

Size	King
Surface material	45% rayon from bamboo, 55% polyester
Filling	Alternative hollow cotton
Backing	Waterproof TPU membrane
Fit depth	Fits up to 21 in deep mattresses
Certification	OEKO-TEX Standard 100 certified
Care	Machine wash gentle, tumble dry low or line dry

Our Verdict

The GRT King Mattress Protector is a practical, cost-effective choice for buyers who prioritize mattress protection and a soft, breathable sleeping surface. It pairs a reliable waterproof TPU barrier with a rayon from bamboo top and OEKO-TEX safety, making it particularly good value for families and pet owners who need everyday defense without sacrificing comfort.

Frequently Asked Questions

Is this mattress protector noisy or vinyl-like?
The protector uses a TPU membrane rather than vinyl, so it is marketed as noiseless and generally does not have the crinkly feel associated with vinyl covers.

Can it be washed in a home machine?
Yes, the cover is machine washable on a gentle cycle and can be dried on low heat or line dried to preserve the TPU backing.

Will it add significant cushioning to my mattress?
No, the quilted design adds light cushioning from the hollow cotton filling but is intended primarily for protection and cooling rather than major comfort modification.