The unique Tencel cover is made of 32% Tencel and 68% polyester. For an optimal, dry sleeping climate and a pleasantly soft mattress surface, the cover is quilted with cozy fleece. The natural fiber Tencel helps to prevent sweating. A side ventilation band provides even more breathability. Excellent lying comfort is ensured by highly flexible 3D comfort pads made of point-elastic cold foam. The mattress is ventilated between the 3D comfort pads and through vertical air channels. There are two firmness levels: soft (wave contour / white top panel) and medium-firm.