KÖRPERSTÜTZSTRUKTUR

The body supporting structure is a mattress, a pillow or a seat which comprises a thermally insulating and moisture regulating comfort layer (4). This comfort layer (4) is made of a polyurethane foam having a density of between 25 and 70 kg/m 3 , a water vapour resistance R et , measured in accordance with DIN EN 31092:1993, of less than 60 m 2 Pa/W and an ILD 40% value, measured in accordance with ISO2439 B, of less than 100 N. In order to achieve an increased short-time water vapour absorbency F i the polyurethane foam comprises superabsorbent polymer particles dispersed therein. In this way, the polyurethane foam comfort layer has an improved thermophysiological quality which may in particular even be better than the thermophysiological quality of the existing wool containing comfort layers. Only small amounts of superabsorbent polymer particles so that a durable polyurethane foam can be obtained having good mechanical properties.