Pressure reduction mattress

A mattress, comprising:

• a top layer which is made of a resilient material and which includes a foot support section and an upper body support section, said foot support section having a lower portion and having thereabove an upper portion which is softer than said lower portion, and said upper body support portion having a lower portion and having thereabove an upper portion which is softer than said lower portion, said upper portion of said foot support section being thicker than said lower portion thereof, and said upper portion of said upper body support section being thicker than said lower portion thereof;
• and a densified fiber layer of substantially uniform thickness disposed immediately below said top layer, said foot support section and said upper body support section of said top layer being disposed on respective portions of said fiber layer.

A mattress, comprising:

• a fiber layer which is a sheet of fiber material, a top layer made of a resilient material and disposed on said fiber layer, and a further layer made of a foam material and provided immediately beneath said fiber layer, wherein said top layer has a foot support section and an upper body support section, said further foam layer extending beneath said upper body support section but not said foot support section.

A mattress, comprising:

• a fiber layer which is a sheet of fiber material, and a top layer made of a resilient material and disposed on said upper layer, wherein said top layer has an upper portion and a lower portion, said upper portion being softer than said lower portion, wherein said top layer includes a foot support section and an upper body support section, wherein in said foot support section said upper portion of said top layer is thicker than said lower portion thereof, and wherein in said upper body support section said lower portion of said top layer is thicker than said upper portion thereof.

A mattress, comprising:

• a top layer which is made of a resilient material and includes a foot support section and an upper body support section, said foot support section of said top layer having a convoluted upper surface and said upper body support section of said top layer having an upper surface which is free of convolutions;
• wherein said convoluted upper surface is defined by a plurality of recesses in the upper surface;
• and wherein said recesses in said foot support section are each of substantially uniform size and shape, and each have approximately the shape of an inverted, four-sided pyramid.

A mattress, comprising:

• a top layer which is made of a resilient material and includes a foot support section and an upper body support section, said foot support section and said upper body support section of said top layer each having a convoluted upper surface, said upper surface of said foot support section being substantially more convoluted than said upper surface of said upper body support section;
• wherein each said convoluted upper surface is defined by a plurality of recesses in the upper surface, said recesses in said foot support section being substantially deeper than said recesses in said upper body support section;
• and wherein said recesses in said foot support section and said upper body support section each have at an upper end thereof an opening, said openings in said foot support section and said upper body support section all having a substantially uniform cross-sectional size and shape.