Pulmonary mattress

A patient support surface comprising:

• a cover defining an interior region;
• a layer of three dimensional material, located at the interior region, the three-dimensional material including a network of thermoplastic fibers;
• an air circulation device disposed adjacent the layer of three dimensional material;
• and
• a hose, located at the interior region, including at least one connector adapted to couple to an external device.

A hospital bed comprising:

• a frame, to support a patient;
• and
• a support surface;
• located on the frame, the support surface including a cover defining an interior region, a layer of three dimensional material, located at the interior region, the three-dimensional material including a network of thermoplastic fibers, an air circulation device disposed adjacent the layer of three dimensional material;
• and at least one of a percussion and a vibration device, located at the interior region.

A patient support surface having a head end and a foot end, comprising:

• a cover defining an interior region;
• a layer of three dimensional material, located at the interior region, the three-dimensional material including a network of thermoplastic fibers;
• an air circulation device disposed adjacent the layer of three dimensional material;
• and
• a head elevation device, located at the head end of the patient support surface, the head elevation device including a support surface to elevate the head end of the patient support surface.