SafeRest
Queen · 9–12 in
Zippered Mattress Encasement, Queen (9–12 in)
New to the catalog
Full six-sided zippered protection for Queen mattresses with a standard 9 to 12 inch profile.
King · 9–12 in
SafeRest Zippered Mattress Protector - Premium 9-12 Inch Waterproof Mattress Cover for Bed - Breathable, Noiseless Washable Mattress Encasement - King
4.6 (17,813 ratings — across all sizes of this protector)
A fitted protector guards the surface you sleep on. An encasement guards the mattress itself — all six sides, sealed with a zipper. This King version fits profiles from 9 to 12 inches and is the answer when the concern is more than spills: allergens working out of an older mattress, or the need to certify a bed clean from bed bugs after a scare or a move.
$45.99
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
Complete 360-degree shell
The encasement surrounds the mattress the way a case surrounds a pillow. Top, bottom and all four sides are one continuous barrier, so there is no open underside for dust mites or bed bugs to reach the mattress — or to leave it.
2
Waterproof, breathable fabric
The same logic as our fitted protectors, extended to every face: soft noiseless fabric outside, a full waterproof membrane inside. Spills stop at the surface no matter which edge they run to.
3
A zipper built to stay shut
The fine-toothed zipper closes with teeth small enough that nothing crawls through, and the closure is engineered against creeping open on its own. Once you zip it, the mattress stays sealed until you decide otherwise.
The night test
An encased mattress feels no different through a sheet — the fabric is soft and the seal is silent. What changes is what you stop thinking about: the used bed frame from the move, the decade of dust in the old mattress, the itch you could never explain.
Care
The encasement usually stays on the mattress; strip and wash the bedding above it as usual. When it does need a wash, machine wash cold and tumble dry low, and zip it fully closed first so the teeth do not catch the drum. Full care guide →
More in Zippered Encasements
Queen · 12–15 in
Zippered Mattress Encasement, Queen (12–15 in)
4.6 (17,813 ratings — across all sizes of this protector)
The deep-profile encasement: full zippered coverage for pillow-top and hybrid Queens 12 to 15 inches tall.
Twin XL · box spring
Box Spring Encasement, Twin XL
New to the catalog
A zippered shell for the Twin XL box spring — the forgotten half of the bed, sealed on all six sides.