Patent ID: 11938071
Assignee: SLEEP NUMBER CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 24:
25. A bed system comprising:
a comfort layer configured to support a user and allow air flow between a comfort layer bottom and a comfort layer top;
an upper layer disposed below the comfort layer and defining a plurality of openings;
a lower layer disposed below the upper layer, wherein the lower layer and the upper layer define first and second interior spaces between the lower layer and the upper layer;
a first fluid distribution member positioned within the first interior space and configured to distribute air in a first zone in the bed system;
a second fluid distribution member positioned within the second interior space and configured to distribute air in a second zone in the bed system; and
one or more fluid delivery modules in fluid communication with the first and second interior spaces and configured to deliver air to the first and second interior spaces;
wherein air entering the first interior space is distributed within the first interior space by the first fluid distribution member before exiting through the plurality of openings of the upper layer,
wherein air entering the second interior space is distributed within the second interior space by the second fluid distribution member before exiting through the plurality of openings of the upper layer,
wherein the upper and lower layers are configured to form at least one fluid boundary, the at least one fluid boundary defining at least one non-fluid zone that separates the first and second zones,
wherein the lower layer comprises foam, the lower layer including (i) an inner foam portion positioned between the first zone and the second zone to space the first zone from the second zone and (ii) an outer foam portion positioned between a perimeter of the bed system and the first and second zones, wherein the inner and outer foam portions combine to define the first and second zones to each have a substantially rectangular shape,
wherein the first and second fluid distribution members are more air permeable than the lower layer,
wherein the comfort layer is positioned above the upper layer, and perforated with a plurality of openings that extend through the comfort layer from the comfort layer top to the comfort layer bottom to allow air flow between the comfort layer bottom and the comfort layer top, and
wherein the comfort layer comprises viscoelastic foam, and wherein the comfort layer has a greater surface area than a combined surface area of the first and second fluid distribution members when viewed from a direction perpendicular to a top of the bed system.