The OrthoTherapy 8-Inch Spring Mattress is perfect for people who like a firmer mattress, Hundreds of individual springs provide the support your body needs, Since each spring works independently virtually every inch of your body gets a customized level of support whether you sleep on your back side or stomach, , This OrthoTherapy Mattress Features:, 0, 5-inch top layer of super soft foam for comfort; 7, 5-inch of individually wrapped innerspring coils for support, Superior pressure point relief: improves circulation; eliminates motion transfer; reduces tossing and turning, CertiPUR-US® certified; the most rigorous and comprehensive certification for polyurethane foam, foam is resistant to dust mites and naturally antimicrobial, Outer cover - soft poly jacquard fabric, This product meets all flammability standards; 10-year manufacturers limited warranty, Available Sizes: Twin (39""W x 75""L) Twin XL (39""W x 80""L) Full (54""W x 75""L) Queen (60""W x 80""L) and King (76""W x 80""L), To maximize mattress expansion; remove from packaging within 72 hours of receipt, This product arrives very tightly packed, Please unwrap and allow 48 hours for this product to return to its original shape, Being sealed in plastic packaging sometimes traps odors, A few hours of airing usually removes the odor, Frame and foundation sold separately, SKU: ZNUS088