MATTRESS SYSTEM WITH NEGATIVE PRESSURE Russian patent published in 2021 - IPC A47C21/04 

FIELD: furniture.

SUBSTANCE: bedding system includes a box layer having a channel and an inlet. The channel has a passage communicating with the inlet. A capacitive layer includes a cavity communicating with the passage. A mattress layer includes a lower surface and an upper surface forming a sleeping surface. A hole continues through the upper and lower surfaces and communicates with the cavity. A central vacuum system includes an energy block, a tube having the first end connected to the energy block and the second end connected to an outlet, as well as a hose having the first end connected to the outlet and the second end connected to at least one inlet.

EFFECT: obtaining a mattress system with negative pressure.

20 cl, 17 dwg