The Therapeutic Foam 5 Zone Pressure Reduction Support Mattress by Drive Medical is a deluxe, deep foam mattress intended for the prevention of pressure related bed sores and ulcers. This mattress features an egg crate top layer which reduces painful pressure points and increases comfort and support. The removable nylon cover reduces friction and minimizes resistance to ensure optimal skin integrity. Moreover, the cover is breathable, waterproof, machine washable and anti-microbial. This Therapeutic mattress support up to 300 lbs and is backed by a Manufacturers two-year limited warranty making this the ultimate in pressure reduction support mattresses in the market today. Dimensions: 35 in W x 80 in D x 5.5 in H. Product weight 16 lbs. Weight Capacity: 300 lbs.