Multilayered mattress component

A mattress component, comprising:

• a first layer of a first material to be assembled in a mattress over which a user will lie, the first layer having a surface;
• a second layer of a second material having different properties than the first material, the second layer having a surface contiguous with the surface of the first layer;
• and
• mating patterns formed in the surface of the first layer and the surface of the second layer, the mating patterns in the surfaces of the first and second layers being designed to substantially match the surface of the first layer with the surface of the second layer, the mating patterns in the surfaces of the first and second layers resulting in a greater effective thickness of one of the first and second layers in areas corresponding to a position where hips and shoulders of the user will rest on the mattress, and a lesser effective thickness of the one of the first and second layers in other areas.