2" Topper Can Go Over Any King, Queen, Full, Or Twin Mattress. 5.3lb Visco Elastic Memory Foam, Velour Poly/Cotton Cover Is Hypo-Allergenic, Dust Mite Resistant, Zip-Off Removable, Washable, And Must Be Line Dried. A plush Velour Poly/Cotton blend cover surrounds the topper. Open-Celled memory foam responds to your body's own heat, molding, and contouring to your unique, individual shape. Twin-Memory Foam Mattress Topper-NEE$180.00 Size: Twin-Visco-Pad Full Memory Foam Mattress Topper Full-Memory Foam Mattress Topper-NEE$250.00 Size: Full-Visco-Pad Queen-Memory Foam Mattress Topper Queen-Memory Foam Mattress Topper-NEE$269.99 Size: Queen-Visco-Pad King Memory Foam Mattress Topper King-Memory Foam Mattress Topper-NEE$315.00 Size: King-Visco-Pad