It uses mineral fiber, has super far infrared rays, decomposes and eliminates odors, regulates humidity, and absorbs harmful substances. It is close to the body, comfortable and warm, creating a good sleeping environment. Far infrared rays promote blood circulation, improve immunity and relieve fatigue. The surface material is made of velvet fabric with strong softness and soft touch. The back material is made of ore cloth with strong air permeability. The effect is more obvious when used together with the aforementioned "silk stoneⓇ" blanket. There are elastic bands on the four corners, tightly and firmly on the mattress. Both sides can be used, and the washing machine at home can be washed. It is recommended for people with cold syndrome, low back pain, shoulder pain, and light sleep.