Mattress assembly including thermally conductive foam layer

Mattress assemblies and processes that provide user comfort include at least one thermally conductive foam layer consisting essentially of a polymeric elastomer foam matrix and a plurality of thermally conductive particles disposed therein, wherein the plurality of thermally conductive particles are selected from the group consisting of carbon, graphene, graphite, platinum, aluminum, gold, silver, silicon, copper, iron, nickel, stretched polyethylene nanofibers, and mixtures thereof; and a base core layer, wherein the at least one thermally conductive foam layer overlays the base core layer.