Yun Gan Mian: The support given to the human body at any point is multi-directional distributed, and the distributed multi-directional support is more closely fitting the human body curve to achieve zero pressure sleep in the true sense. Different from the vertical force of ordinary sponge, the multi-dimensional cross-type force brings more sensitive, more comfortable and more comfortable sleep with a certain degree of weak temperature sensitivity. The body temperature will make the viscoelastic material slightly soft and gently respond to changes in the body. When the sleeping posture changes, the cloud sponge will respond more gently to the body posture and form a suspended sleep feeling