The protect ease premium mattress encasement is made with a poly-coated stretch-knit fabric top, bottom, and sidewalls for waterproof protection against stains and spills. The zippered construction is bed-bug proof and dust mite proof, providing full encapsulation of your mattress keeping it in brand new condition, and lasting longer. Sleep safe knowing that you and your family are completely protected against allergens that are commonly found in mattresses. Wash with similar items on delicate cycle and low/no heat dry.