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.
Waterproof protectors, sealed encasements and pillow covers by SafeRest — quiet, breathable, machine washable, and built to outlast the warranty of the bed they guard.
Shop Mattress Protectors Read the Care Guide
Three kinds of cover, three different jobs. Most beds want the first column; some situations call for all three.
| Compare | Fitted protector | Zippered encasement | Pillow protection |
|---|---|---|---|
| Covers | The sleep surface — top and skirt, like a fitted sheet | All six sides of the mattress or box spring, sealed with a zipper | The pillow, fully enclosed — solo packs or whole-bed sets |
| Best for | Everyday spills, sweat and accidents on any bed | Allergies, dust mites, bed bug protocols, moves and rentals | Sweat, oils and dust where your face spends the night |
| Install | Under a minute — pulls on like a sheet | A one-time, two-person job; then it stays sealed | Zip each pillow in; wash monthly |
| Washing | With your sheets, cold, weekly | Rarely — it stays clean under the bedding | Monthly, with the pillowcases |
| From | $14.99 | $32.99 | $19.00 |
Ranked by owner ratings, one listing family counted once — the rest of the catalog lives on the mattress protectors, zippered encasements, pillow protectors & sets pages.
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 (17,813 ratings — across all sizes of this protector)
A six-sided zippered vault for King mattresses 9 to 12 inches deep — nothing gets in, nothing gets out.
4.7 (9,029 ratings)
The Queen box spring encasement — seals the foundation so the whole bed, not half of it, is protected.
4.5 (2 ratings)
The whole-bed set for a Queen: one fitted mattress protector plus two zippered Queen pillow protectors, matched.
Browse everything: Mattress Protectors (9) · Zippered Encasements (6) · Pillow Protectors & Sets (3).
Real figures from real owners at our retail partner. Where the sizes of one protector share a single review pool, we say so — one number, counted once.
SafeRest makes protection for the bed and nothing else — waterproof mattress protectors, six-sided zippered encasements and pillow covers. That narrow focus is why the name keeps coming up whenever people talk about keeping a mattress clean: the original SafeRest cotton terry protector has collected more than 280,000 owner ratings and still holds a 4.6 average across them. No piece in the range pretends to be a topper, a pad or a decoration; every SafeRest layer is a washable boundary between the night and the mattress underneath it.
Every SafeRest sleeping surface pairs soft, absorbent cotton terry with a thin polyurethane membrane laminated underneath. The membrane is a solid film with pores too small for liquid water, dust mites or allergen particles, yet open enough for water vapor, so warm air from your body keeps migrating through instead of building up as heat. In practice that means a SafeRest cover is silent under a fitted sheet, does not crinkle when you turn over, and never turns the bed into a plastic bag — the two complaints that give lesser covers a bad name, and the two tests the brand has been passing for years.
The fitted SafeRest protector dresses the sleeping surface and pulls on like a fitted sheet — the everyday answer for spills, sweat, kids and pets, off and into the wash in under a minute. The SafeRest zippered encasement seals all six sides of the mattress or box spring and stays there, which is why allergy protocols, dust mite control and bed bug programs call for it by name. SafeRest pillow protectors finish the system, because the pillow is where your face actually spends the night. Allergy-prone households typically run all three; most beds are happy starting with the first.
The brand cuts its line by bed size and by mattress depth — crib through California King for the fitted protectors, and separate 6-to-9, 9-to-12 and 12-to-15 inch depths for the encasements. Measure from the crown of the mattress to the bottom edge with a tape, not by eye; a cover stretched over the wrong depth wrinkles, and wrinkles are where membranes wear first. If your number lands between two cuts, take the larger one — SafeRest elastic takes up slack, but nothing adds fabric that is not there.
Every SafeRest layer machine washes cold and tumbles dry low, and cared for that way it routinely outlives the warranty of the mattress it guards. The two things that shorten a membrane's life are heat and chlorine bleach — avoidable habits, not defects — and the care guide covers the brand's full routine on one page. Ratings shown on product pages are real owner figures quoted with their counts and never invented, so what you read about SafeRest here is what the last few hundred thousand nights actually looked like.
Every SafeRest layer machine washes cold and tumbles dry low — and cared for that way, routinely outlives the mattress warranty it protects. The full science fits on one page.