Waterproof Mattress Protector, King
4.6 (280,416 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.

New to the catalog
Sleepure is the protector for sleepers who veto anything that sleeps warm. The face is smooth viscose derived from bamboo — cool to the touch, gentle on skin, nothing like the toweling most protectors wear. Under it sits the water-resistant barrier; around it, a stretch skirt that swallows Twin mattresses up to 18 inches deep. Protection, minus every texture people usually object to.
In stock
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Viscose from bamboo is smooth and thermally light — it sheds heat instead of holding it. If a terry surface feels like sleeping on a towel to you, this is the other answer.
The barrier handles sweat, spills and accidents without a whisper of crinkle. It is engineered for silence first, because a protector on a kid or teen bed gets rejected the first night it makes noise.
The deep-stretch skirt fits everything from a slim bunk mattress to a tall Twin hybrid. One SKU covers whatever the Twin bed frame in question is wearing this year.
The hot-sleeper test is the only one that counts here: an hour in, put a hand under the shoulder blades. Cool and dry means the viscose is doing its job. Sleepure is also OEKO-TEX Standard 100 certified — the fabric is tested against harmful substances, which matters most on the beds kids sleep in.
Machine wash cold and tumble dry low. The viscose face keeps its smooth hand through the laundry cycle — no pilling, no roughening — so the cool-touch feel of night one survives the school year. Full care guide →
4.6 (280,416 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.
4.6 (280,416 ratings — across all sizes of this protector)
Our original cotton terry protector in the Queen cut — the size on most beds, and the one most guests sleep on.
New to the catalog
The Classic Plus: our lightest Queen protector, vinyl-free and priced to cover every spare bed you own.