GEL-PRO FOAM MATTRESS SYSTEM is a three section, 5.5" mattress that utilizes a high density, high compression foam base designed to extend the life of the mattress and maximize its clinical benefit. Constructed using the same materials as the Gel-Pro Overlay but with heavy-duty institutional use in mind. Zippered cover allows for sections to be removed for easy portability and storage. Both materials are fluid and stain resistant, anti-microbial and fire-retardant. Mattress consists of: Eggcrate Top layer, Gel Center & Foam Base. Medicare Code E0185. 1 year manufacturer warranty against manufacturer defects. Available in 4 sizes: Twin 35" Wide X 80" Long X 5.5" high, Full 39" Wide X 75" Long X 5.5" high, Queen 54" Wide X 76" Long X 5.5" High, King 60" Wide X 80" Long X 5.5" High.