EFFECTS AND ADVANTAGES It is indicated as way of protection for mattress. COMPOSITION Polyurethane Saniluxe: 60% polyester, 40% polyurthane MAINTENANCE Rizo and vinyl: washable at 90ºC. Tolerate the tumble-dryer. It is forbidden to use bleach. Polyurethane: required a minimum of maintenance, it just have to wipe a damp sponge or a cloth. May be washed by hand or by machine too until 90ºC. Tolerate the tumble-dryer. Do not use bleach.