SafeRest
King
Waterproof Mattress Protector, King
4.6 (280,612 ratings — across all sizes of this protector)
The protector that made our name, cut for the 76 by 80 inch King surface two people actually share.
Cal King
SafeRest Waterproof California King Size Mattress Protector
4.6 (280,612 ratings — across all sizes of this protector)
California King trades width for length — seven full feet of mattress, usually the centerpiece of a room built around it. Sleepure covers it in a blend of sixty percent polyester and forty percent viscose derived from bamboo: smooth, cool to the touch, water-resistant underneath, and entirely free of the padding and zippers that change how a premium mattress feels.
$49.99
Price checked 2026-10-16
In stock
Your order is placed with and fulfilled by our retail partner — with its delivery network, tracking and return window.
Three layers of thinking
1
Bamboo-viscose blend face
The 60/40 blend gives the surface the cool hand of viscose with the durability of polyester. Over a very large bed that matters: the fabric has to stay smooth across a lot of unsupported span.
2
Discreet water-resistant barrier
Spills, perspiration and accidents are stopped without altering the softness or the stillness of the sleep surface. A mattress this size is rarely replaced on impulse, and the barrier is what keeps that decision years away.
3
Deep-stretch skirt to 18 inches
The skirt pulls over California King profiles up to 18 inches deep and holds the fabric in one uninterrupted layer. No pulled corners, no slack in the middle of a very wide surface.
The night test
Two sleepers on a bed this large rarely agree about bedding, so the test is unanimity: neither of you can find the protector by feel, by sound or by temperature. Sleepure is OEKO-TEX Standard 100 certified, tested against harmful substances.
Care
Machine wash cold and tumble dry low — and give a bed this size its own load, since a California King protector needs room to move to dry evenly through the skirt. Full care guide →
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