Get ready for an extraordinary comfort experience. Extraordinary Comfort Coming with Visco on the Top Surface The viscose we use on the top of the mattress acts according to your body weight and supports your body in the most appropriate way according to your sleeping position, and adapts perfectly to the shape of your body. In addition, due to its structure, visco takes shape according to your body temperature, so your blood circulation is balanced. To sleep on the visco side, simply turn the visco side of the bed.