Sleeping furniture and electric motor-driven furniture drive for such a piece of furniture and a method for operating an electric motor-driven furniture drive

Abstract

The invention relates to an electric motor-driven furniture drive for a piece of sleeping furniture having at least one adjustment drive (8, 9) for moving at least one movable furniture component relative to a further furniture component by means of an electric motor, having at least one vibration or bending sensor (11) for detecting vibrations and / or sound, which can be coupled with the sleeping furniture, and an evaluation unit connected to the at least one vibration or bending sensor (11), which is designed to derive a sleeping state of a user of the piece of sleeping furniture from signals of the at least one vibration or bending sensor (11). The electric motor-driven furniture drive is characterised in that at least one sensor (12) is present which is not directly mounted on or in the at least one adjustment drive (8, 9) for determining an angle of inclination of at least one furniture component. The invention further relates to a piece of sleeping furniture, in particular a bed, comprising such an electric motor-driven furniture drive. In addition, the invention relates to a method for operating an electric motor-driven furniture drive.

Description

[0001] Sleeping furniture and electric motor drive for such a piece of furniture, as well as a method for operating an electric motor drive

[0002] The invention relates to an electromotive furniture drive for a piece of bedroom furniture, comprising at least one adjustment drive for the electromotive movement of at least one movable furniture component relative to another furniture component, having at least one vibration or bending sensor for detecting vibrations, sound, and / or bending, which can be coupled to the bedroom furniture, and an evaluation unit connected to the at least one vibration or bending sensor, which is configured to derive a sleeping state of a user of the bedroom furniture from signals from the at least one vibration or bending sensor. The invention further relates to a piece of bedroom furniture, in particular a bed, comprising such an electromotive furniture drive. Furthermore, the invention relates to a method for operating such an electromotive furniture drive.

[0003] Electric motor drives in sleeping furniture, such as beds, sofa beds, or recliners, make it easy to adjust to a suitable sleeping or resting position. For example, a back or leg section can be raised or lowered relative to a middle section of the bed. Beds equipped with electric motor drives encourage the user to find and adjust the optimal sleeping position, whereas this is often not possible with non-adjustable or manually adjustable beds due to a lack of comfort or physical mobility.

[0004] The document DE10 2016 109 524 A1 describes an electric furniture drive in which a vibration or bending sensor is used to record vibrations during use of the furniture. This vibration is then evaluated in order to derive the physiological state of the user of the furniture. Among other things, it can be determined whether the user snores and whether this is accompanied by breathing problems such as apnea. Even if snoring does not cause serious breathing problems, snoring at night leads to less restful sleep for the snorer themselves and often also for partners who use the same furniture or are in the same room. The document DE10 2016 109 524 A1 describes that once a condition involving breathing problems is detected, warning signals can be issued that can be forwarded to nursing staff, for example, or the electric furniture drive can be controlled.The latter is based on the fact that by operating an adjustment drive, a change in position can be caused, which may stop snoring.

[0005] However, only a few furniture drives use adjustment drives with a position sensor, meaning there is no information about the current position of movable furniture components. For example, a changed position can only be approximately assumed over a predefined travel time. When it is detected that snoring has stopped, the adjustment drive is scheduled to return to its original position. Without a position sensor, only in the rarest of cases will the adjustment drive return to its original position after a back-and-forth movement. Furthermore, if the adjustment drive moves back and forth frequently during a night, a positioning error can accumulate to such an extent that the furniture no longer offers a restful sleeping position at all.

[0006] It is therefore an object of the present invention to provide a piece of sleeping furniture and an electromotive furniture drive of the type mentioned above as well as a method which provides relief from snoring by changing the position and can then return the sleeping furniture to a desired position, even if adjustment drives without a position sensor are used.

[0007] This object is achieved by an electric motor-driven furniture drive or a piece of bedroom furniture with such an electric motor-driven furniture drive, having the respective features of the independent claims. Advantageous embodiments and further developments are specified in the dependent claims.

[0008] An electromotive furniture drive according to the invention of the type mentioned at the outset has at least one sensor, which is not arranged directly on or in the at least one adjustment drive, for determining an angle of inclination of at least one furniture component.

[0009] A method according to the invention comprises the following steps: Signals from at least one vibration or bending sensor are detected and evaluated, and the sleep state of a person using the sleeping furniture is determined based on the evaluated signals. The at least one adjustment drive is then operated depending on the determined sleep state and depending on the inclination state of the at least one movable furniture component detected by the sensor.

[0010] The sensor can be used to determine the angle of inclination of the furniture component, thus controlling the adjustment drive to assume a predetermined, desired position when the evaluation of the vibration or bending sensor signals indicates a problematic or at least undesirable sleep state, such as shortness of breath and / or snoring. The vibration or bending sensor can operate using either a piezoelectric or electromagnetic method.

[0011] By using the sensor to determine the inclination of the furniture component, a defined reclining position can be assumed and, for example, returned to in a defined manner after snoring has stopped, even if the adjustment drives themselves do not provide position detection. This makes the furniture drive according to the invention particularly suitable as a retrofit solution: Without the costly replacement of the adjustment drives, retrofitting the sensor to measure the angle of inclination of at least one furniture component and correspondingly adapting a control device of the furniture drive allows for the possibility of a defined approach to desired positions or positions of the furniture component.

[0012] In this context, it should be noted that this option can also be used without vibration detection and analysis, for example, to directly move the sleeping furniture to desired positions using a hand-held control of the furniture drive. Desired positions ("sleeping position," "reading position," "sitting position," "anti-snoring position," etc.) can then be predefined or adjustable and saved, and can be adopted or reproduced with the push of a button on the hand-held control.

[0013] In an advantageous embodiment, the electric motor-driven furniture drive has a control device for controlling the at least one adjustment drive, wherein the evaluation unit for the vibration or bending sensor is coupled to the control device or integrated into the control device. Furthermore, the at least one vibration or bending sensor and / or the at least one sensor for determining the angle of inclination can be integrated into the control device. This creates a system that is as compact as possible, in which only the control device needs to be attached to a movable part of the sleeping furniture in order to detect vibrations and angles of inclination.

[0014] In an advantageous embodiment of the electromotive furniture drive, the at least one vibration or bending sensor and / or the at least one sensor for determining the angle of inclination are arranged in at least one separate housing and coupled to the control device. The evaluation unit for the vibration or bending sensor and / or a further evaluation unit for the sensor for determining the angle of inclination is preferably arranged in the separate housing. This embodiment is particularly suitable as a retrofit solution. The separate housing can be arranged on a movable furniture part, e.g. a back part of the bedroom furniture, so that both vibrations or bending that can affect the sleeping state are recorded, as well as the inclination of the furniture part, whereby the position adjustment can be carried out in a defined manner.

[0015] The connection to the control device can be via a cable or wirelessly, whereby in the latter case a separate power supply unit is provided for the sensors or the evaluation units. This arrangement can advantageously be used with an existing control device. The separate sensors and the control device can be connected, for example, via a branch (“Y-adapter”) to the input for a manual control on the control device. The at least one adjustment drive is then controlled via the manual control connection in such a way that the predetermined, desired position is assumed if the evaluation of the signals from the vibration or bending sensor indicates a questionable or at least undesirable sleep state. This takes place using the control device, without the latter having to be designed or adapted in any way.

[0016] In a further advantageous embodiment of the electromotive furniture drive, the at least one sensor for determining the angle of inclination is an acceleration sensor, in particular a MEMS (Micro Electro-Mechanical System) sensor. With such a sensor, the acceleration due to gravity can be measured and thus an angle between the sensor and a vertical can be determined. The sensors are small and inexpensive. Alternatively, the at least one sensor for determining the angle of inclination can be a distance measuring sensor, e.g. an ultrasonic sensor or an optical sensor, in particular a (Light Detection and Ranging) sensor. The angle of inclination of the movable furniture part can also be easily determined based on a measured distance, e.g. between the back of a bed and a frame or the floor.

[0017] A piece of sleeping furniture according to the invention, in particular a bed, is characterized by such an electric motor-driven furniture drive with at least one vibration or bending sensor and at least one sensor for determining an angle of inclination. This results in the advantages described above in connection with the furniture drive and the method.

[0018] The invention is explained in more detail below using exemplary embodiments and figures. They show:

[0019] Fig. 1 a bed with an electric motor furniture drive in an isometric view;

[0020] Fig. 2 shows the bed according to Fig. 1 with the electric motor furniture drive in a schematic representation;

[0021] Fig. 3 another bed with an electric motor furniture drive in an isometric view;

[0022] Fig. 4 shows the bed according to Fig. 3 with the electric motor furniture drive in a schematic representation; and

[0023] Fig. 5 is a flowchart of an embodiment of a method according to the invention.

[0024] Figures 1 and 2 show a first embodiment of a bed 1 as an example of a piece of sleeping furniture with an electric motor drive. Figure 1 shows the bed 1 in a three-dimensional view, and Figure 2 shows it in a schematic view.

[0025] The bed 1 has at least one support element 3 for accommodating, for example, upholstery or a mattress M. The bed 1 can be designed as a single bed for one person or as a double bed for several people. The support element 3 is designed, for example, as a slatted frame, a flat support surface, or the like, and is attached to a base element 2, here a frame with feet, with which the bed 1 is installed at a location, e.g., the floor.

[0026] In the example shown, the support element 3 comprises a back part 4 and a leg part 5, which are mounted so as to be movable relative to a fixed central part 6 or relative to the base element 2. This movable arrangement is realized here by means of a so-called movement fitting 7. The movement is designed to be displaceable and / or pivotable.

[0027] The movably mounted back section 4 and the leg section 5 are each coupled to an electric motor-driven adjustment drive 8, 9. Thus, the back section 4 is coupled to the electric motor-driven adjustment drive 8. The electric motor-driven adjustment drive 9 is provided for moving or adjusting the leg section 5.

[0028] The electromotive adjustment drives 8, 9 are designed as linear drives. The linear drives have one or a number of electric motors, with each motor followed by a speed reduction gear with at least one gear stage. The speed reduction gear can be followed by another gear, for example in the form of a threaded spindle gear, which generates a linear movement of an output member from the rotary movement of the motor. The last gear member or a further member connected to it forms the output member. The output member of the respective electromotive adjustment drive is connected to the respective furniture component (back part 4, leg part 5) or, alternatively, to a component connected to the base element 2, so that when the electric motor of the respective adjustment drive 8, 9 is operated, the movable furniture components 4, 5 are adjusted relative to one another or relative to the base element 2.

[0029] The electromotive adjustment drives 8, 9 are connected to a control device 10. This connection can be designed, for example, as a plug-in cable connection, which is not shown in detail here. The control device 10 has an electrical supply unit which provides the electrical energy, e.g. from a power supply network, to supply the control device 10 itself and the electromotive adjustment drives 8, 9. For this purpose, the control device 10 can be connected to a mains connection via a mains cable with a mains plug (not shown in this example). Alternatively, an external mains-dependent voltage supply with a mains input and a secondary low-voltage output, e.g. a power supply unit, can be connected upstream of the control device 10, which feeds the low voltage in the form of a direct voltage to the control device 10 via a line. Such a configuration is shown in the second exemplary embodiment in Figs. 3 and 4.

[0030] A hand control 15 is connected to the control device 10 via a cable 16, which in this exemplary embodiment is permanently mounted at least on the hand control 15, as a transmission link. The hand control 15 has operating elements by means of which the electromechanical adjustment drives 8, 9 can be controlled via the control device 10. As an alternative to the wired hand control 15 shown as an example, wireless transmission, e.g. by radio, an optical transmission link (e.g. for infrared light) and / or an ultrasonic transmission link, can be implemented, with the control device 10 being equipped with a respective corresponding receiving unit for this purpose. Further alternatively or additionally, it can be provided to control the control device 10 via a universal mobile device 17 in order to operate the electromotive furniture drive.For this purpose, a commercially available mobile phone ("smartphone") or a tablet computer can be used as the mobile device 17, which is equipped with appropriate software ("app") that implements the functionality of the handheld control 15. The mobile device 17 can use, for example, WLAN (Wireless Local Area Network) or Bluetooth to transmit wireless signals 18 for direct communication with the control device 10. Indirect communication, for example, via a router in an intranet, can also be used.

[0031] According to the application, the bed 1 shown is provided with a vibration or bending sensor 11 that detects vibrations and / or sound. In the exemplary embodiment of Figs. 1 and 2, the vibration or bending sensor 11 is integrated into the control device 10. The control device 10 is mounted on the back part 4 of the bed 1 and thus on a component of the bed 1 to which vibrations caused by snoring are transmitted and can be detected accordingly. The attachment can be made, for example, by means of a screw, rivet, or adhesive connection, or also by a snap-in or clamp connection, for example using a spring clip. The vibration or bending sensor 11 is designed, for example, as a piezoelectric component or as an electromagnetic component and is sensitive to (bending) vibrations of the base to which it is attached, in this case, therefore to oscillations (vibrations) experienced by the frame of the back part 4.Such vibrations also include structure-borne sound transmitted by the backrest. Additionally, the vibration or bending sensor 11 can be sensitive to (airborne) sound waves and, in this sense, function as a microphone.

[0032] The control device 10 comprises an evaluation unit for processing and evaluating the signals supplied by the vibration or bending sensor 11. The evaluation unit comprises, for example, amplifiers and filter units that make it possible to draw conclusions about certain bodily functions of a person lying in bed 1 from the signal transmitted by the sensor 12. In particular, the evaluation unit is configured to determine from the signals of the sensor 12 whether the person snores. In addition, it may be provided to determine further physiological parameters relating, for example, to cardiac and circulatory functions, such as heart rate and respiratory rate. Furthermore, it may be provided to detect the person's movements.

[0033] If snoring is detected by the evaluation unit of the control device 10, at least one of the adjustment drives 8, 9 is instructed to move the back part 4 and / or the leg part 5 in order to bring about a change of position for the user of the sleeping furniture 1.

[0034] In order to be able to do this in a controlled manner, even if the adjustment drives 8, 9 do not have a position sensor, a sensor 12 is arranged in the control device 10 in the illustrated embodiment of Figs. 1 and 2, with which the inclination of the back part 4 of the bed 1 can be determined. The sensor 12 is therefore also referred to below as "inclination sensor 12."

[0035] In the illustrated embodiment, the inclination sensor 12 is an acceleration sensor that measures the orientation of the control device 10 relative to the Earth's gravitational field. The inclination sensor 12 can, in particular, be a MEMS sensor. The inclination sensor 12 makes it possible to measure the inclination of the control device 10 and thus the inclination of the back part 4 and to control the adjustment drive 8 such that the back part 4 assumes a predetermined inclination in the event of snoring. Instead of a position sensor integrated into the adjustment drive, according to the application, an inclination sensor built into the control device 10 is used for position detection.

[0036] Additionally, a comparable inclination sensor could be arranged on the leg part 5, external to the control device 10, so that its inclination is also detected. In this case, after snoring is detected, the leg part 5 can also be moved to a different position in a controlled manner via the adjustment drive 9.

[0037] If the control device 10 detects, based on a subsequent evaluation of the signals from the vibration or bending sensor 11, that snoring has been successfully stopped and / or when a predetermined time has elapsed (even if snoring has not been stopped), the original position of the back section 4 and, if applicable, the leg section 5 can be returned. Accordingly, the adjustment drive 8 and, if applicable, also the adjustment drive 9 are controlled so that the previously set position of the back section 4 or the leg section 5 is resumed. This retraction of the adjustment drives 8, 9 is also controlled based on the inclination of the back section 4 measured by the inclination sensor 12 or the inclination of the leg section 5 measured by another inclination sensor.

[0038] The basic idea of ​​being able to position the adjustable furniture components, here the back part 4 or the leg part 5, even if the adjustment drives used do not have a position sensor, can also be implemented using methods other than an acceleration sensor:

[0039] For example, an angle measuring unit could be mounted on the adjustable furniture parts, such as the backrest 4, which measures the angle of the backrest 4 relative to the frame 2 or, using a pendulum, relative to the vertical. This could, for example, use an electromechanical rotary encoder.

[0040] It is also conceivable to arrange a distance sensor on the back part 4, which rises with the back part 4 and measures a distance to the frame 2 or the floor. Such a distance sensor can be based on an optically operating LIDAR sensor, an ultrasonic sensor, or an optical triangulation measurement. Instead of the inclination sensor 12, which can continuously measure an angle between the control device 10 and the vertical, an inclination switch can also be provided, which switches at certain angles predetermined by its own installation position within the control device 10. Using two such inclination switches, at least one resting position can be defined and a position that is assumed when snoring is detected.

[0041] In Figs. 3 and 4, a further embodiment of a furniture drive according to the invention or of a piece of bedroom furniture according to the invention with such a furniture drive is shown in the same way as in Figs. 1 and 2.

[0042] The basic structure of bed 1 is comparable to that shown in the first embodiment. Reference is explicitly made to the description of Figs. 1 and 2. The differences between the two embodiments are explained below.

[0043] In the second embodiment, the vibration or bending sensor 11 and the inclination sensor 12 are not located in the control device 10, but in a shared external housing. Attachment can again be achieved by means of a screw, rivet, or adhesive connection, or by a snap-in or clamp connection, for example, using a spring clip. The sensors 11, 12 are connected to the control device 10 via a sensor cable 13.

[0044] Another difference is that the control device 10 is not mounted on the back part 4, but on the frame 2. In order to detect vibrations caused by the user, for example, when snoring, and to determine the inclination of the back part 4, the sensors 11, 12 are arranged in their common housing on the back part 4. This configuration can be particularly advantageous if there is insufficient space or no suitable mounting option for the control device 10 on the back part 4.

[0045] Furthermore, this design is particularly well-suited as a retrofit solution. For this purpose, the evaluation unit for the vibration or bending sensor 11 and / or a further evaluation unit for the inclination sensor 12 are also arranged in the common housing or coupled to the sensors 11, 12, so that they operate independently of the control device 10 and function as an additional controller that controls the control unit 10. This controller can then be connected to the control device 10 via a cable or wirelessly, whereby in the latter case, a separate power supply unit is provided for the sensors 11, 12 or the evaluation units.

[0046] The controller can, for example, be connected to an input for the manual control 15 on the control device 10. If only one manual control connection is available, an adapter ("Y-adapter") can be used to connect the manual control unit 15 and this controller. The adjustment drive(s) 8, 9 can then be controlled via the manual control connection so that a specific position is assumed when the evaluation of the signals from the vibration or bending sensor indicates a critical or at least undesirable sleep state. This is thus done using the control device 10, but is transparent to it, so that an operating method according to the invention can be carried out even if the control device 10 itself is not designed for this purpose.

[0047] A further difference is that the control device 10 in this embodiment does not have an integrated power supply, but is operated with an upstream power supply 14. This upstream power supply 14 is also mounted on the frame 2 in the present case. It is understood that the external power supply 14 can also be implemented in the first embodiment with the control device 10 mounted on the back part 4.

[0048] In the following, an operating method according to the invention for an electric motor-driven furniture drive is presented in a flowchart in conjunction with Fig. 5. The method is explained using the previously described embodiments as an example. Reference numerals used in these two embodiments are used.

[0049] In a first step S1, signals from the vibration or bending sensor 11 are recorded and evaluated in order to detect possible snoring. To evaluate the signals, the raw signals from the vibration or bending sensor 11 are filtered, for example, in particular using a low-pass filter. The use of a band-pass filter with suitable cut-off frequencies is also possible. Low-pass or band-pass filters serve to eliminate interference frequencies. In addition, evaluation can be provided using a frequency analysis, for example a Fourier analysis. It can also be provided to determine an envelope curve of a curve, e.g. an amplitude curve of the signal, possibly restricted to a certain frequency range, and to use this as the basis for the evaluation. In this case, a pattern comparison can be carried out, preferably using self-learned patterns. The signals are preferably processed using a digital signal processor (DSP).

[0050] If no snoring is detected in step S2, the method branches back to step S1 to continue monitoring the signals from the vibration or bending sensor 11. If snoring is detected in step S2, the method continues in step S3.

[0051] In step S3, the adjustment drive 8 is controlled so that the back part 4 is raised. Then, in a subsequent step S4, the inclination of the back part 4 is measured using the inclination sensor 12 and compared with a predetermined value in a subsequent step S5.

[0052] If this value is not reached, the process branches back to step S4, where the inclination measurement is repeated. If the specified value is reached in step S5, the adjustment drive 8 is stopped in a next step S6.

[0053] In a subsequent step S7, a timer is started and waited for to expire. The timer can be set, for example, to a few tens of seconds or a few minutes. During this time, the bed should remain in the position with the backrest 4 raised to stop snoring.

[0054] The method then continues in step S8, in which the adjustment drive 8 is controlled so that the back part 4 lowers again. Analogous to steps S4 and S5, in the following steps S9 and S10 an inclination adjustment of the back part 4 is measured via the inclination sensor 12. When a predetermined inclination for the original resting position is reached, the adjustment drive 8 is stopped in a next step S11. The method then branches back to step S1 in order to be ready for a new detection of snoring. Instead of the time elapse in step S7, it can also be provided that the back part 4 is left in the raised position until it is detected that snoring has stopped. In a further development of the method, it can also be provided to change a position for the back part 4 by small changes in position and to determine the sleep state in each case.In this way, the best possible position for the backrest 4 (or another movable piece of furniture) can be found and maintained, in which an optimal sleeping condition is achieved, e.g. without snoring or other breathing problems.

[0055] It is further understood that the method can be carried out analogously for adjusting the leg part 5 by means of the adjustment drive 9 if an inclination sensor for measuring inclination is also present on the leg part 5.

[0056] Finally, it should be mentioned that the procedure can also be carried out in a completely analogous manner when using other sensors or measuring devices with which an inclination of one of the movable parts of the sleeping furniture can be determined.

[0057] In addition to detecting snoring, the signals from the vibration or bending sensor 12 can also be evaluated for other purposes, e.g., to determine physiological parameters such as respiratory rate and / or pulse rate. An evaluation can take place within the control device 10. The determined physiological parameters can then be transmitted either directly or after intermediate storage in the control device 10 to another device, for example, via wireless transmission 18 to the aforementioned mobile device 17. The mobile device 17 can, in particular, be a commercially available mobile phone ("smartphone") or a tablet computer and is equipped with appropriate software ("app") that enables evaluation and, preferably, graphical representation of the time-dependence of the determined physiological parameters. WLAN (Wireless Local Area Network) or Bluetooth, for example, can be used as the transmission path for the wireless signals 15.

[0058] It may also be provided that the signals of the vibration or bending sensor 12 are transmitted to the mobile device 17 without evaluation, but possibly after filtering and signal preprocessing, and evaluated there with regard to the physiological parameters.

[0059] 1 bed

[0060] 2 Basic element

[0061] 3 Support element

[0062] 4 back part

[0063] 5 Leg part

[0064] 6 Middle section

[0065] 7 Movement fitting

[0066] 8, 9 Adjustment drive

[0067] 10 Control device

[0068] 11 Vibration or bending sensor

[0069] 12 Sensor for tilt determination

[0070] 13 sensor cables

[0071] 14 Power supply

[0072] 15 Manual operation

[0073] 16 cables

[0074] 17 Mobile device

[0075] 18 Wireless signal

[0076] M mattress

[0077] S1 -S11 process step

Claims

Claims 1. An electromotive furniture drive for a piece of bedroom furniture, comprising at least one adjustment drive (8, 9) for the electromotive movement of at least one movable furniture component relative to another furniture component, a control device (10) for controlling the at least one adjustment drive (8, 9), and at least one vibration or bending sensor (11) for detecting vibrations and / or sound, which can be coupled to the bedroom furniture, and an evaluation unit connected to the at least one vibration or bending sensor (11) and configured to derive a sleeping state of a user of the bedroom furniture from signals from the at least one vibration or bending sensor (11), characterized in that at least one sensor (12) is provided, not directly mounted on or in the at least one adjustment drive (8, 9), for determining an angle of inclination of at least one furniture component.

2. Electromotive furniture drive according to claim 1, wherein the at least one vibration or bending sensor (11) and / or the at least one sensor (12) for determining the angle of inclination is integrated into the control device (10).

3. Electromotive furniture drive according to claim 1 or 2, wherein the evaluation unit for the vibration or bending sensor (11) is coupled to the control device (10) or is integrated into the control device (10).

4. Electromotive furniture drive according to claim 1, wherein the at least one vibration or bending sensor (11) and / or the at least one sensor (12) for determining the angle of inclination are arranged in at least one separate housing and are coupled to the control device (10).

5. Electromotive furniture drive according to claim 4, wherein the evaluation unit for the vibration or bending sensor (11) and / or a further evaluation unit for the sensor (12) for determining the angle of inclination are arranged in the separate housing.

6. Electromotive furniture drive according to one of claims 1 to 5, wherein the at least one sensor (12) is an acceleration sensor.

7. Electromotive furniture drive according to claim 6, wherein the at least one sensor (12) is a MEMS sensor.

8. Electromotive furniture drive according to one of claims 1 to 7, wherein the at least one sensor (12) is a distance measuring sensor.

9. Electric motor furniture drive according to claim 8, wherein the at least one sensor (12) is an ultrasonic sensor.

10. Electromotive furniture drive according to claim 8, wherein the at least one sensor (12) is an optical sensor, in particular a LIDAR sensor.

11. Electromotive furniture drive according to one of claims 1 to 10, wherein the at least one vibration or bending sensor (11) is a piezoelectric or electromagnetic sensor.

12. Sleeping furniture, in particular a bed (1), comprising an electromotive furniture drive with at least one vibration or bending sensor (11) and at least one sensor (12) according to one of the preceding claims.

13. Sleeping furniture according to claim 12, wherein the at least one vibration or bending sensor (11) and the at least one sensor (12) for determining the inclination are attached to a movable furniture part of the sleeping furniture.

14. Sleeping furniture according to claim 12, wherein the at least one vibration or bending sensor (11) and the at least one sensor (12) for determining the inclination are integrated into a control device (10) of the electromotive furniture drive, which is attached to a movable furniture part of the sleeping furniture.

15. Method for operating an electromotive furniture drive with at least one adjustment drive (8, 9) for the electromotive movement of at least one movable furniture component relative to another further furniture component, at least one vibration or bending sensor (11) for detecting vibrations and / or sound, which is coupled to the sleeping furniture, and at least one sensor (12) which is coupled to the sleeping furniture for determining an inclination of the at least one movable furniture component, with the following steps: - detecting and evaluating signals from at least one vibration or bending sensor (12); - Determining the sleeping state of a person using the sleeping furniture based on the evaluated signals; - Operating the at least one adjustment drive (8, 9) depending on the detected sleep state and depending on an inclination state of the at least one movable furniture component detected by the sensor (12).

16. Method according to claim 15, wherein the at least one movable furniture component is a back part (4) of a bed (1).

17. The method according to claim 15 or 16, wherein the detected sleep state relates to snoring of the user.

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