RESTOR Style Soft Luxury Memory Foam Collection 10-Inch Queen Mattress Mattress is a 4- lb density 2-1/2-inch memory foam pillow top layer; 7-1/2-inch supportive base foam which alleviates back and joint pain Meets all flammability standards Memory Foam is resistant to dust mites and is naturally antimicrobial Removable cover is machine washable/ dryable