This Mattress Protector offer protection against dust mites, fluids, urine, perspiration and allergens making them especially helpful for those with kids, pets, allergies or incontinence. As we sleep we shed thousands of dead skin cells, which can quickly accumulate providing an ideal environment for dust mites. The mattress protectors trap dust mites, allergens and skin cells on the surface of the protector where they can be easily washed away during suggested quarterly launderings. This helps provide a cleaner more allergen-free sleep environment for you and your family. To ensure a great fit, an elastic band is used on the side skirt to automatically pull excess material under the mattress. • Care Instructions Machine-wash with your sheets using normal household detergents that do not contain bleach. Tumble dry on low heat. Do not iron. Safe Shield Our mattress protectors will not change the feel of your mattress. This is great for those with any type of mattress including innerspring, latex or memory foam.