A monitoring system comprising: a sensor unit including an inclinometer and a support structure for mechanical coupling of the inclinometer to a bed , the mechanical coupling enabling generation of a motion signal that represents changes in inclination of the bed; a control unit ; the sensor unit includes an interface configured to transmit the motion signal to the control unit ; the control unit is configured to: identify from the motion signal a specific set of inclinations of the bed ; in response to identifying from the motion signal the specific set of inclinations of the bed, detect a rise-state of a subject occupying the bed (102, wherein the rise-state indicates that the subject intends to get out of the bed ;^ characterized in that the control unit is further configured to: trigger, in response to the detection of the rise-state, blood pressure measurement of the subject; compare a blood pressure measurement value to at least one threshold value for a selected range of blood pressures; and induce an alarm when the measured blood pressure is not within the selected range of blood pressures. a sensor unit including an inclinometer and a support structure for mechanical coupling of the inclinometer to a bed , the mechanical coupling enabling generation of a motion signal that represents changes in inclination of the bed; a control unit ; the sensor unit includes an interface configured to transmit the motion signal to the control unit ; the control unit is configured to: identify from the motion signal a specific set of inclinations of the bed ; in response to identifying from the motion signal the specific set of inclinations of the bed, detect a rise-state of a subject occupying the bed (102, wherein the rise-state indicates that the subject intends to get out of the bed ;^ characterized in that the control unit is further configured to: trigger, in response to the detection of the rise-state, blood pressure measurement of the subject; compare a blood pressure measurement value to at least one threshold value for a selected range of blood pressures; and induce an alarm when the measured blood pressure is not within the selected range of blood pressures. identify from the motion signal a specific set of inclinations of the bed ; in response to identifying from the motion signal the specific set of inclinations of the bed, detect a rise-state of a subject occupying the bed (102, wherein the rise-state indicates that the subject intends to get out of the bed ;^ characterized in that the control unit is further configured to: trigger, in response to the detection of the rise-state, blood pressure measurement of the subject; compare a blood pressure measurement value to at least one threshold value for a selected range of blood pressures; and induce an alarm when the measured blood pressure is not within the selected range of blood pressures. trigger, in response to the detection of the rise-state, blood pressure measurement of the subject; compare a blood pressure measurement value to at least one threshold value for a selected range of blood pressures; and induce an alarm when the measured blood pressure is not within the selected range of blood pressures. <EOS>