Abstract: A low air loss mattress to provide a variable pressure to an individual who is confined to a bed. The mattress has an air plenum and a motor driven blower to inflate the air plenum. The blower is housed within a pull-out and interchangeable pump cartridge that is received within a pump cartridge receptacle inside the mattress. The pump cartridge is removable from the pump cartridge receptacle to permit the blower to be repaired or replaced without having to discard the mattress. Ambient air is supplied to the blower by way of a tuned air pump inlet path that winds between a pair of sound absorbing blocks. Air is blown front the blower to the air plenum by way of a tuned air manifold that is located inside the mattress to inflate the air plenum. Bluetooth compatible sensors located inside the mattress are responsive to physical parameters to which the mattress is subjected.

Abstract: A low air loss mattress to provide a variable pressure to an individual who is confined to a bed. The mattress has an air plenum and a motor driven blower to inflate the air plenum. The blower is housed within a pull-out and interchangeable pump cartridge that is received within a pump cartridge receptacle inside the mattress. The pump cartridge is removable from the pump cartridge receptacle to permit the blower to be repaired or replaced without having to discard the mattress. Ambient air is supplied to the blower by way of a tuned air pump inlet path that winds between a pair of sound absorbing blocks. Air is blown front the blower to the air plenum by way of a tuned air manifold that is located inside the mattress to inflate the air plenum. Bluetooth compatible sensors located inside the mattress are responsive to physical parameters to which the mattress is subjected.