An adjusting device for adjusting a spring support of a bed, - with at least one electric motor for driving an adjustable section (3, 4, 6, 7) of the spring support, - with a control device for actuating and supplying with current the respective electric motor, which is able to be connected via a power cable to a current supply, which is able to be connected via at least one motor cable with the respective electric motor and which has a cable-connected stationary transmission- and/or receiving unit and a cable-free stationary transmission- and/or receiving unit, via which the control device is able to be actuated, - with a remote control for actuating the control device, which has a manually operable operating unit for inputting an adjustment request and which has a cable-connected mobile transmission- and/or receiving unit and a cable-free mobile transmission-and/or receiving unit, via which the remote control communicates with the control device, - with a remote control cable for the cable-connected signal transmission between the remote control and the control device, which is able to be connected to the stationary cable-connected transmission- and/or receiving unit and to the mobile cable-connected transmission- and/or receiving unit, - with switching means and/or a switching device for switching on and switching off the two cable-free transmission- and/or receiving units (26, 51), which with a remote control cable connected to the mobile cable-connected transmission- and/or receiving unit and/or with connecting of the remote control cable to the mobile cable-connected transmission-and/or receiving unit bring(s) about an automatic switching off of the two cable-free transmission- and/or receiving units (26, 51) and which with a remote control cable not connected to the mobile cable-connected transmission- and/or receiving unit and/or on separating the remote control cable from the mobile cable-connected transmission- and/or receiving unit (25, 48) bring(s) about an automatic switching on of the two cable-free transmission- and/or receiving units (26, 51). - with at least one electric motor for driving an adjustable section (3, 4, 6, 7) of the spring support, - with a control device for actuating and supplying with current the respective electric motor, which is able to be connected via a power cable to a current supply, which is able to be connected via at least one motor cable with the respective electric motor and which has a cable-connected stationary transmission- and/or receiving unit and a cable-free stationary transmission- and/or receiving unit, via which the control device is able to be actuated, - with a remote control for actuating the control device, which has a manually operable operating unit for inputting an adjustment request and which has a cable-connected mobile transmission- and/or receiving unit and a cable-free mobile transmission-and/or receiving unit, via which the remote control communicates with the control device, - with a remote control cable for the cable-connected signal transmission between the remote control and the control device, which is able to be connected to the stationary cable-connected transmission- and/or receiving unit and to the mobile cable-connected transmission- and/or receiving unit, - with switching means and/or a switching device for switching on and switching off the two cable-free transmission- and/or receiving units (26, 51), which with a remote control cable connected to the mobile cable-connected transmission- and/or receiving unit and/or with connecting of the remote control cable to the mobile cable-connected transmission-and/or receiving unit bring(s) about an automatic switching off of the two cable-free transmission- and/or receiving units (26, 51) and which with a remote control cable not connected to the mobile cable-connected transmission- and/or receiving unit and/or on separating the remote control cable from the mobile cable-connected transmission- and/or receiving unit (25, 48) bring(s) about an automatic switching on of the two cable-free transmission- and/or receiving units (26, 51).