▎ 摘　　要

NOVELTY - Bed mattress comprises a bottom frame (100) provided with a spacer (110) formed on an upper surface. A solenoid groove is formed in rows and columns. A screw groove is formed in a center part of the solenoid groove. A support layer (300) is formed with a receiving groove for accommodating a solenoidal body. A conductive ring pressure sensor (400) is electrically connected to a circuit that is attached to coincide with a center of the solenoidal body. An alarm unit gives a warning alarm after a predetermined time is elapsed when a pressure point is maintained at a same position for the predetermined time. A remote control includes a control unit for coagulating a graphene bag located other than the pressure point through a healthcare platform with a hot wire (500). A wireless communication unit communicates wirelessly with a user terminal and receives a control signal from the user terminal to solidify a magnetic resonance (MR) fluid. USE - The bed mattress is useful for preventing bedsores. ADVANTAGE - The mattress minimizes occurrence of pressure sores by diversifying pressure points by coagulating the MR fluid by generating a magnetic field using a solenoid, so that the pressure point can be changed to another position by accurately detecting a position, where the pressure can be generated. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the bed mattress for preventing bedsores. 100Bottom frame 110Spacer 300Support layer 400Conductive ring pressure sensor 500Hot wire