American Bedding Isotonic 12" Medium Hybrid Full Mattress combines a pressure-relieving memory foam comfort layer with responsive coil support to offer balanced, medium-level support for a wide range of sleepers. A polyurethane cooling cover helps wick heat and maintain a comfortable sleep surface, while the 12-inch profile uses layered foam and coil support to deliver stability and targeted contouring. Proudly made in the USA, this hybrid mattress works on a platform, foundation, or box spring to provide dependable support night after night.