Japanese Futon Mattress: Japanese traditional-style bedding includes the Japanese futon mattress, which can be used directly on the floor. It is made of soft, comfortable, skin-friendly materials. It is ergonomically designed to contour to the body's natural curves, helps align the spine, and alleviates back pain. Upgraded Five-tier Structure: The surface of this futon mattress is made of a polyester microfiber fabric that provides good comfort.The core of the mattress is the layer of HIGH-DENSITY 25D MEMORY FOAM, which offers great support. There are also top and bottom layers of down-alternative fiber, providing extra comfort and cushioning. This futon mattress will provide an better sleeping experience.