Bed having rollover identifying feature

1. A system comprising:

a mattress comprising:

a first support portion configure to receive and support a first user laying on the first portion; and

a second support portion configured to receive and support a second user laying on the second portion;

wherein the first support portion and the second support portion are adjacent to each other such that the first user is capable of rolling over from the first support portion to the second support portion while sleeping on the first support portion;

a sensor configured to:

sense first pressure in the first support portion;

sense second pressure in the second support portion; and

transmit, to a controller, data of the first pressure and the second pressure; and

a controller configured to:

receive the data of the first pressure and the second pressure; and

from the data of the first pressure and the second pressure, determine if the first user has rolled over from the first support portion to the second support portion.

2. The system of claim 1 , wherein responsive to determining that the first user has rolled over from the first support portion to the second support portion, the controller is further configured to:

transmit a control signal to a controllable device to engage the controllable device.

3. The system of claim 2 , the system further comprising the controllable device, the controllable device configure to:

receive the control signal to engage the controllable device;

responsive to receiving the control signal to engage the controllable device, engage in order to alter the environment.

4. The system of claim 3 , wherein the controllable device is a pressure controller and wherein engaging in order to alter the environment comprises changing the pressure of the second support portion.

5. The system of claim 3 , wherein the controllable device is a temperature controller and wherein engaging in order to alter the environment comprises changing the temperature of the second support portion.

6. The system of claim 3 , wherein the controllable device is an articulation controller and wherein engaging in order to alter the environment comprises articulating the second support portion.

7. The system of claim 1 , wherein the controller is further configured to:

record in computer memory an amount of time that the first user has rolled onto the second support portion.

8. The system of claim 1 , wherein the controller is further configured to:

record a degree of roll over.

9. The system of claim 1 , wherein to determine if the first user has rolled over from the first support portion to the second support portion, the controller is configured to:

generate a first parameter, from the data, that represents a measure of at least one from the group consisting of: the first user and the first support portion;

using the first parameter, determine a movement value for the first user;

if the determined movement value indicates movement for the first user, identify a rollover event using a covariation measure between the first support structure and the second support structure.

10. The system of claim 9 , wherein the covariation measure between the first support structure and the second support structure represent measures of one of the group consisting of:

amplitudes of pressure waves;

rates of change of amplitudes of pressure waves;

rates of motions of users;

coherence measures;

entropy of pressures;

amplitude modulations of pressure waves;

frequency modulations of pressure waves;

phase differences of pressure waves;

breathing rates;

breathing amplitudes;

heartbeat rates;

heartbeat amplitudes.

11. The system of claim 1 , wherein to determine if the first user has rolled over from the first support portion to the second support portion, the controller is configured to:

detecting a decrease in the data of first pressure while also detecting an increase in the data of second pressure.

12. A system comprising:

a means for supporting a mattress

the mattress, the mattress comprising:

a first support portion configure to receive and support a first user laying on the first portion; and

a second support portion configured to receive and support a second user laying on the second portion;

wherein the first support portion and the second support portion are adjacent to each other such that the first user is capable of rolling over from the first support portion to the second support portion while sleeping on the first support portion;

a sensor configured to:

sense first pressure in the first support portion;

sense second pressure in the second support portion; and

transmit, to a controller, data of the first pressure and the second pressure; and

a controller configured to:

receive the data of the first pressure and the second pressure; and

from the data of the first pressure and the second pressure, determine if the first user has rolled over from the first support portion to the second support portion.

13. The system of claim 12 , wherein responsive to determining that the first user has rolled over from the first support portion to the second support portion, the controller is further configured to:

transmit a control signal to a controllable device to engage the controllable device.

14. The system of claim 13 , the system further comprising the controllable device, the controllable device configure to:

receive the control signal to engage the controllable device;

responsive to receiving the control signal to engage the controllable device, engage in order to alter the environment.

15. The system of claim 14 , wherein the controllable device is a pressure controller and wherein engaging in order to alter the environment comprises changing the pressure of the second support portion.

16. A controller configured to:

communicate with a sensor that is connected to a mattress, the mattress comprising:

a first support portion configure to receive and support a first user laying on the first portion; and

a second support portion configured to receive and support a second user laying on the second portion;

wherein the first support portion and the second support portion are adjacent to each other such that the first user is capable of rolling over from the first support portion to the second support portion while sleeping on the first support portion;

wherein the sensor is configured to:

sense first pressure in the first support portion;

sense second pressure in the second support portion; and

transmit, to a controller, data of the first pressure and the second pressure; and

wherein the controller is further configured to:

receive the data of the first pressure and the second pressure; and

from the data of the first pressure and the second pressure, determine if the first user has rolled over from the first support portion to the second support portion.

17. The controller of claim 16 , wherein to determine if the first user has rolled over from the first support portion to the second support portion, the controller is configured to:

generate a first parameter, from the data, that represents a measure of at least one from the group consisting of: the first user and the first support portion;

using the first parameter, determine a movement value for the first user;

if the determined movement value indicates movement for the first user, identify a rollover event using a covariation measure between the first support structure and the second support structure.

18. The controller of claim 17 , wherein the covariation measure between the first support structure and the second support structure represent measures of one of the group consisting of:

amplitudes of pressure waves;

rates of change of amplitudes of pressure waves;

rates of motions of users;

coherence measures;

entropy of pressures;

amplitude modulations of pressure waves;

frequency modulations of pressure waves;

phase differences of pressure waves;

breathing rates;

breathing amplitudes;

heartbeat rates;

heartbeat amplitudes.

19. The controller of claim 18 , wherein to determine if the first user has rolled over from the first support portion to the second support portion, the controller is configured to:

detecting a decrease in the data of first pressure while also detecting an increase in the data of second pressure.