Abstract: The invention is directed to a body support assembly comprising (i) an upper cushion zone and a lower cushion zone and separated by a separation sheet. The cushion zones comprise of a compressible material which is permeable for air in all directions, (ii) a first flow path for ambient air comprising an air inlet opening at the bottom surface of the support assembly, air displacement means, a first heat exchanger and a single or separate air outlet opening at the bottom surface of the support assembly, (iii) a second flow path for air comprising an air inlet, air displacement means, a second heat exchanger, through the lower cushion zone, through openings in the separation sheet and through the upper cushion zone and multiple air outlets in the top surface. The heat exchangers are part of a Peltier effect unit positioned within the cushion volume.

Abstract: The invention is directed to a body support assembly comprising (i) an upper cushion zone (6) and a lower cushion zone (7) and separated by a separation sheet (8). The cushion zones (6, 7) comprise of a compressible material which is permeable for air in all directions, (ii) a first flow path (10) for ambient air comprising an air inlet opening (11) at the bottom surface (3) of the support assembly, air displacement means (12), a first heat exchanger (13) and a single or separate air outlet opening (14) at the bottom surface (3) of the support assembly, (iii) a second flow path for air comprising an air inlet (19), air displacement means (20), a second heat exchanger (17), through the lower cushion zone (7), through openings (23) in the separation sheet (8) and through the upper cushion zone (6) and multiple air outlets (22) in the top surface (2). The heat exchangers (13, 17) are part of a Peltier effect unit (16) positioned within the cushion volume (4).

Abstract: Body support assembly (1) having a top surface (2) and a spaced away bottom surface (3) defining a cushion volume (4) and defining side walls (5). The air permeability of the top surface (2) is higher than the air permeability of the bottom surface (3). The cushion volume (4) comprises an upper cushion zone (7) and a lower cushion zone (8) and separated by a separation sheet (9). The upper cushion zone (7) and the lower cushion zone (8) comprise of a compressible material (10) which is permeable for air in all directions. The cushion volume (4) further comprises a flow path for air comprising an air inlet (6) in the bottom surface (3), air displacement means (20), a heat exchanger (21), a flow path through the compressible material of the lower cushion zone (8), through openings in the separation sheet (9) and through the compressible material (10) of the upper cushion zone (7) and multiple air outlets as present in the top surface (2).

Abstract: The invention is directed to a body support assembly comprising (i) an upper cushion zone (6) and a lower cushion zone (7) and separated by a separation sheet (8). The cushion zones (6, 7) comprise of a compressible material which is permeable for air in all directions, (ii) a first flow path (10) for ambient air comprising an air inlet opening (11) at the bottom surface (3) of the support assembly, air displacement means (12), a first heat exchanger (13) and a single or separate air outlet opening (14) at the bottom surface (3) of the support assembly, (iii) a second flow path for air comprising an air inlet (19), air displacement means (20), a second heat exchanger (17), through the lower cushion zone (7), through openings (23) in the separation sheet (8) and through the upper cushion zone (6) and multiple air outlets (22) in the top surface (2). The heat exchangers (13, 17) are part of a Peltier effect unit (16) positioned within the cushion volume (4).