The deluxe Spring-Ease from Drive and Mason Medical offers extra firm support in an innerspring mattress with two high-density combustion modified fiber layers and an anti-microbial, water resistant surface. Deluxe innerspring mattress provides extra-firm support|Multi-layered with two 1" high-density, firm, combustion modified fiber toppers on the top, and one 1" high density, firm, combustion-modified fiber topper on the bottom|The Masongard vinyl waterproof cover is anti-microbial/anti-bacterial|The mattress is fire-retardant and conforms to CFR 16 part 1633