Night Therapy Spring 8 Inch Mattress and BiFold Box Spring Set, Queen Pressure relieving firm support from Pocketed Springs Only the Highest Quality of Foam - Foam is CertiPUR-US Certified for durability, performance, and content Offers the look and functionality of a traditional box spring, but made from heavy gauge steel for longer-lasting durability No assembly required, simply open the box, slide the foundation out and unfold, it will immediately open to the shape of a box spring Mattress: Worry Free 10 year limited warranty BiFold Box Spring: Worry Free 5 year limited warranty