The Inner Spring Mattress by Drive Medical offers a high quality inner spring design ensuring you are at max comfort. The mattress has a vinyl cover that is waterproof, anti-bacterial and anti-static for convenience and ease of use. The mattress is made of Premium Grade cotton and a high-density urethane foam for maximum comfort and increased durability. Features and Benefits Two screened brass side vents allow mattress to breathe High quality innerspring design Constructed of premium grade cotton and high-density urethane foam for maximum comfort and increased durability Vinyl cover is waterproof, anti-bacterial, and anti-static for easy use and care Product Specifications Available in 2 sizes 84" x 36", and 80" x 36" Product Weight Capacity: 300 lbs Warranty: Limited Lifetime