Patent ID: 7865989

Claim:
A mattress, comprising a base body and at least one spring element unit, wherein the base body comprises at least one cavity and an edging, wherein the spring element unit is accommodated in the cavity and the edging laterally supports the spring element unit, wherein the spring element unit comprises a plurality of spring elements, wherein the spring elements and the base body each are made of an flexible polyurethane foam and wherein the indentation hardness of the spring element unit differs from the indentation hardness of the base body, wherein the spring elements in cross-section comprise a side shell comprising jointing faces and side faces, wherein the spring elements are placed side-by-side such that the jointing faces of neighboring spring elements abut each other and a clearance is formed between the side faces of neighboring spring elements, and wherein the spring element comprises at least one recess as an air channel for dissipating moisture and a top end and a bottom end, wherein the recess extends end-to-end from the top end to the bottom end.