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Mattress Protector

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In short

A mattress protector is a fitted cover that shields a mattress from spills, sweat and stains. It changes the feel very little. An encasement zips fully around the mattress for stronger dust-mite blocking. Waterproof protectors often use a thin membrane. Many sleep trials and warranties expect you to use one.

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Close view of a plush velvet headboard and matching upholstered bed
Many bed words describe fabric, shape or storage — this is how they look in a room.

Definition. A mattress protector is a fitted cover that shields a mattress from spills and stains while changing its feel very little.

Breathable membranes let air pass through tiny holes. Thick plastic layers can feel warmer.

Wash the protector as its label says, so it keeps its waterproof layer.

Full guide: mattress protectors and encasements.