Mattress core and mattress providing pressure relief and minimizing body pressure

A mattress core comprising a substantially polygonal latex foam base core having opposite substantially parallel end surfaces and opposite substantially parallel side surfaces collectively defining a polygonal peripheral surface, first and second substantially polygonal latex foam outer layers each having opposite substantially parallel end surfaces and opposite substantially parallel side surfaces collectively defining a substantially polygonal peripheral surface of each outer layer which substantially match the base core polygonal peripheral surface, said base core having opposite substantially flat surfaces and said outer layers each having a substantially flat surface and an opposite substantially convoluted surface defined by peaks and valleys, means for bonding first and second of said outer layers substantially flat surfaces to respective first and second ones of said base core substantially flat surfaces with said polygonal peripheral surfaces being in substantially peripherally aligned relationship, a polyurethane foam side rail located one along each base core and layer side surfaces and each extending substantially between said base core end surfaces, means for bonding said side rails each to at least one of said base core and outer layers side surfaces, each side rail having a height corresponding substantially to the distance between valleys of convolutions of the opposite outer layers, and said base core and outer layers end surfaces defining terminal end surfaces of the mattress.