The OrthoTherapy 8-Inch Tight Top Spring Mattress and Steel Foundation Set 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 and Foundation Set Features:, 0, 5-inch top layer of super soft foam; 7, 5-inch of individually wrapped innerspring coils, 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, Outer cover - soft poly jacquard fabric, This product meets all flammability standards; 10-year manufacturers limited warranty, Black steel finish foundation is 14-inches high and provides nice storage space, Bed base is easy to assemble and eliminates the need for a box spring, Sets available in 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, Mattress and bed base shipped in separate boxes, SKU: ZNUS048