9 Best Mattress Protectors of 2026

SafeRest is the brand most shoppers already know from Amazon, and its Premium Bamboo protector is the strongest all-round pick we compared. The top layer is viscose derived from bamboo, which SafeRest describes as smooth and cool to the touch, laid over a breathable waterproof membrane that blocks sweat and spills without the crinkle of a plastic cover. A deep-stretch skirt fits mattresses up to 18 inches, which covers most pillow tops and tall hybrids. The protector goes on like a fitted sheet, has no zippers or padding, and can be machine washed and dried. A twin cost $39.99 on SafeRest's own US store when we checked, with free shipping, 30-day returns and a 10-year warranty. SafeRest also sells an Everyday Value version for $27.99 in twin. The main limit is coverage: this is a top and sides protector, so anyone worried about bed bugs or dust mites inside the mattress should look at a six-sided encasement instead.

Protect-A-Bed makes the protectors that many hotels and pest control professionals use, and its AllerZip encasement is the pick for total coverage. Instead of covering only the sleeping surface, it zips around all six sides of the mattress and closes with the brand's patented Bug Lock zipper, which Protect-A-Bed says makes it bite, entry and escape proof for bed bugs. The company rates it dust mite proof on all six sides and allergen resistant, and every product uses a LiquiDry waterproof layer and FUZE antimicrobial treatment under a soft, quiet fabric surface. It fits mattresses 6 to 18 inches deep and can be washed in hot water at 130 F. The AllerZip encasement started at $79.99 on Protect-A-Bed's US store when we checked, and the brand offers 100-night returns. For people who only need spill protection, the brand's Essential protector or SafeRest is easier to put on, since an encasement has to be zipped around a lifted mattress.

Linenspa's Premium Smooth protector is the cheapest way to keep a new mattress dry. A twin cost $15.99 on Linenspa's US store when we checked, and the price includes free shipping and a 10-year limited warranty that covers defects in materials and workmanship for products bought in the United States. The build is simple: a 100% polyester top over a 100% polyurethane backing that Linenspa says is fully waterproof and quiet, with no rustling. It slides on like a fitted sheet and is made to be washed often, hot, with your bedding. The brand is also clear about why a protector matters: Linenspa says the warranty on its own mattresses is voided if you do not use one. The trade-offs are size and comfort. It fits mattresses only up to 14 inches thick, so it can be too shallow for tall pillow tops, and the plain polyester top lacks the cooling fabrics of SafeRest, Bear or Tempur-Pedic.

Bear's protector is aimed at people who sleep hot. Its fabric uses HeiQ Adaptive technology, which Bear says moves moisture and heat away from the body and responds to changes in temperature to keep a cool, dry micro-climate. Under that sits a waterproof barrier that guards against stains, spills, dust mites, bacteria and allergens, and Bear calls the fabric noiseless. Owners of Bear mattresses get one extra benefit: the company says the protector does not reduce the effect of the Celliant fibers in its mattress covers. The price needs some care. During Bear's Black Friday sale, the smallest size showed $48.75 with code BF35 against a $75 list price, and Bear's store data listed the queen at $110 before the code, so larger sizes cost noticeably more than SafeRest. Twin and full were sold out when we checked. Bear also sells a GlacioTex protector with extra cooling for buyers who want more.

Casper's Waterproof Mattress Protector is a straightforward fitted cover from a large mattress brand. The top is polyester with a thermoplastic polyurethane layer that keeps the mattress dry, and Casper stresses that the materials are quiet and crinkle-free. Active stretch skirting made of polyester and spandex fits any mattress up to 18 inches deep, and the size chart covers twin through California king. During Casper's Black Friday sale a twin cost $98.10 and a queen $107.10, against list prices of $109 and $119, with free shipping and dispatch in 1 to 2 business days. Casper asks buyers to wash cold and dry low, warning that hot drying can cause delamination and shrinkage. The weak spot is the warranty. The protector carries a 1-year limited warranty, and returns are accepted within 30 days only if it is unused and in its original packaging. Buyers who want long coverage get more from SafeRest or Linenspa for far less.

Purple designed its Waterproof Mattress Protector for its own beds, whose GelFlex Grid needs to flex freely to relieve pressure. The protector adds stretch so it moves with the grid, and Purple says it is 100% waterproof and stain resistant, with a silent, no-crinkle knit top that is anti-microbial and hypoallergenic. It is made of polyester with a thermoplastic polyurethane coating and is machine washable on cold. Purple sells two depths: Standard for mattresses 8 to 15.5 inches tall and Deep Pocket for 15.5 to 20 inches, the deepest fit on this list after Avocado. Shipping is free, returns are accepted for 30 days if the protector is clean and undamaged, though the buyer pays return shipping, and Purple will replace a faulty product for up to 10 years. We could not load a USD price from our location, so the cost is marked as pending and its value score is conservative.

Avocado's protector is the pick for people who care most about materials. Two layers of GOTS-certified organic cotton surround a thin polyurethane membrane made with a corn-derived ingredient, and the waterproof layer is only about 5% of the protector by weight. Avocado says independent labs tested every component for 679 PFAS substances and found none, and the protector carries GREENGUARD Gold, MADE SAFE and OEKO-TEX STANDARD 100 certifications. There are no fire retardants or antimicrobial treatments. The Standard Pocket fits mattresses 6 to 16 inches deep and the Deep Pocket up to 22 inches. Avocado is unusually candid about limits: the membrane holds back spills, sweat and occasional accidents long enough to clean up, but it is not meant for heavy or prolonged liquid exposure, and its performance can fade with washing. It cost $135 on sale against a $169 list price when we checked, with a 100-night trial and a 1-year warranty.

The TEMPUR-Protect is the protector Tempur-Pedic makes for its own memory foam beds. Its polyester top uses the brand's patented ThermalSense fabric, which is meant to balance temperature, and it is backed by a thin waterproof polyurethane laminate with added stretch so it moves with the mattress. CertainFit mesh sides fit mattresses 8 to 16 inches deep, and the size range includes split king and split California king pieces for adjustable bases. A queen cost $169 on Tempur-Pedic's US store when we checked, with free shipping and a 10-year limited warranty. Two things keep it lower on this list. First, all sales are final, because Tempur-Pedic does not accept returns on this product. Second, its rating on Tempur-Pedic's own site was 3.6 out of 5 across 1,638 reviews, lower than most rivals report. Owners of other mattresses get similar protection for far less from SafeRest or Linenspa.

Sleep Number's Total Protection pad is the only product here that ties directly to a mattress warranty. Sleep Number says that when you buy it within five days of a Sleep Number 360 smart bed, you get a 10-year limited warranty protecting the mattress from almost any stain. The pad itself has a waterproof, stain protective surface that runs down the sides, an antimicrobial treatment and a cool-to-the-touch surface that lets heat and humidity escape while keeping moisture out. It is designed for Sleep Number beds, with sizes including FlexTop king and California king, and it is STANDARD 100 by OEKO-TEX certified. The twin cost $129.99 when we checked, with free shipping on bedding. Sleep Number also reports a 4.6 rating across more than 20,000 reviews. For any other brand of mattress it makes little sense: the fit is specific, the price is high, and the stain warranty only applies to Sleep Number 360 beds.