About This Foam Mattress: Therapeutic mattress replacement system provides pressure redistribution and shear/friction reduction Therapeutic Design: The horizontal cross-cut foam works to provide pressure redistribution in 5 therapeutic pressure zones; the non-skid bottom provides extra security Durable Material: Removable nylon stretch cover is fluid resistant, low shear, and vapor permeable, helping protect the skin from friction and moisture Non-Skid Bottom: Helps mattress stays safely in place Specifications: 80 inches in length x 35 inches in width x 5.5 inches in height; weight capacity: 350 lbs Overview Brand : Drive Medical Size : 1 Count (Pack of 1) Product Dimensions : 80"L x 6"W x 36"Th Item Weight : 19.5 Pounds Item Firmness Description : Medium Top Style : Pillow Top Cover Material : Nylon Number of Layers : 5 Fill Material : Memory Foam Weight Limit : 350 Pounds