SafeRest
King
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.
Twin
SafeRest Waterproof Mattress Protector Twin Size
New to the catalog
Twin beds do hard duty: kids, bunk frames, dorm rooms, guest daybeds. The Essential Twin is the protector for the whole fleet — a thin fitted waterproof layer that fits any Twin mattress up to 18 inches, makes no noise a light sleeper can find, and costs little enough to buy one per bed plus a spare for the closet.
$22.99
Price checked 2026-08-09
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
Barely-there build
Slim and silent by design. Kids reject bedding that crackles; this layer hides under the fitted sheet and never gives itself away, which is why it stays on the bed instead of in a drawer.
2
Full waterproof coverage
Everything a Twin bed absorbs — juice, accidents, muddy-pawed dogs at the foot of the bed — stops at the membrane. The mattress below stays dry through the entire childhood assigned to it.
3
Smooth fitted-sheet fit
The stretch skirt handles slim bunk mattresses and tall hybrids alike. It goes on in under a minute, which matters when you are re-making the top bunk at arm’s length.
The night test
The bunk-bed test: change the sheets on the top bunk and check the mattress. If every stain of the past year lives on the protector and none on the mattress, the system works. That is the whole job, done for the price of a pizza night.
Care
Cold wash, low tumble dry, back on the bed the same afternoon. With a spare in rotation, an overnight accident never costs more than five minutes and one load of laundry. Full care guide →
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