Casper Waterproof Mattress Protector — Queen White, Breathable Crinkle-Free Cover with 360° Stretch Skirt

The Casper Waterproof Mattress Protector is a breathable, crinkle-free cover that shields your queen mattress from spills and stains while preserving the original feel and temperature of the bed.

Designed to act like an invisible safeguard, this protector combines a waterproof film with a soft, quiet surface and an engineered skirt so you don’t notice it during sleep — until you need it. Casper selected a high-performance, breathable film used in advanced outdoor gear and layered it under a comfortable fabric so the protector blocks liquids without trapping heat or making noise. The fit is optimized for modern mattresses: the stretchable, 360-degree skirt holds securely on beds up to 16 inches deep and includes head/foot labels for quick installation.

How does this protector stay waterproof without feeling clammy?

The protector uses a thin, breathable polymer film that blocks liquids but allows moisture vapor to pass through, maintaining a comfortable sleeping climate. Casper validated the balance of protection and airflow through thermal and humidity testing to prevent heat retention.

• Breathable waterproof film borrowed from outdoor gear technology
• Soft, quiet outer fabric for crinkle-free comfort
• Engineered to avoid trapping body heat or altering mattress feel

Will it change the comfort or support of my mattress?

No — the protector is engineered to be a silent layer: thin and compliant enough to preserve your mattress’ original cushioning and support. You’ll keep the same sleep surface while adding stain and spill resistance.

• Ultra-thin protective film beneath a soft surface
• Designed not to add firmness or dampen responsiveness
• Quiet materials prevent the typical crinkling of lesser protectors

How does the fit work for thicker mattresses or movement during the night?

The 360-degree skirt is made from an active-stretch fabric with cross-directional recovery so it stretches to fit and snaps back into place, reducing shifting and bunching. It accommodates mattresses up to 16 inches thick, and machine-directional elastic helps the cover move with the bed instead of popping off.

• Active stretch skirt fits mattresses up to 16" deep
• Cross-directional stretch reduces pulling and wrinkling
• Head and foot labels simplify correct placement

How do I care for and maintain the protector?

The protector is machine-washable and designed for everyday use, making it simple to keep your mattress fresh. Routine washing removes dust and allergens while preserving the waterproof barrier when laundered according to care instructions.

• Machine wash on gentle cycles; follow label directions
• Dry on low heat or air dry to preserve elasticity and film
• Regular cleaning prevents buildup of dirt and extends lifespan

Who is this for? If you want reliable, no-fuss mattress protection that doesn’t alter how your bed feels or sleeps, the Casper Waterproof Mattress Protector for queen beds is a strong choice. It’s suited for parents protecting against spills, pet owners, allergy-conscious sleepers, and anyone who values a quiet, breathable shield that stays put on thicker modern mattresses.