Sleep Master iCoil 13 Inch Euro Top Spring Mattress and BiFold Box Spring Set, Queen This sleep solution set by Zinus includes both a Sleep Master iCoil 13 Inch Deluxe Euro Box Top Spring Mattress and BiFold Box Spring. Everything you need for a better night's sleep. This mattress features hundreds of independent iCoils providing customized support while ensuring motion separation for a consistently comfortable night's sleep. The Foam and Fiber Quilted Cover, 2 layers of Pressure Relieving Comfort Foam, and a High-density Foam layer adds exceptional conforming comfort. Only the Highest Quality of Foam - Foam is CertiPUR-US Certified for durability, performance, and content. The BiFold Box Spring is easy to use in tight places. Tougher than it Looks - Offers the look and functionality of a traditional box spring but made from heavy gauge steel for longer-lasting durability. Hablo español