Waterproof mattress encasement keeps your mattress safe from spills, sweat, and urine. This waterproof protector is made of high-quality materials that do not absorb liquids and are easy to clean. Its smooth gliding, tight locking zipper will keep your mattress securely protected on all six sides. Just place them over top of your mattress and enjoy worry free night's sleep as moisture will not collect in your mattress