No Mo "O" Premium Mattress Protector"s are the best way to preserve and protect your mattress from stains and odors! It is a breathable and waterproof membrane that protects against moisture and body fluids from penetrating and staining your mattress! The No Mo "O" first layer is a 100% Cotton Terry fabric that is comfortable and absorbs moisture. The No Mo "O" second layer is a breathable and waterproof membrane that protects against moisture and body fluids from penetrating and staining your mattress!. Some great advantages: Hygienic sleeping environment for your family, machine washable, warm and tumble dry at low, protects against bacteria, dust mite proof, non-iron fabric, stretchable for easy fit and comfort. Recommended for all mattresses including visco mattresses. Can be sterilized at 100 degrees Celsius or 212 degrees Fahrenheit. Full fits 54" x 75" mattress. Dimensions: 10.5"L x 9"W x 2.5"D.