Application US20190335913

SLEEP PHASE DEPENDENT TEMPERATURE CONTROL AND LEARNING METHODS TO OPTIMIZE SLEEP QUALITY
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US20190335913

1. A method for conditioning a sleep environment, comprising: (6) (3)

receiving an indication that a user is on a sleep surface; and

after receiving the indication that the user is on the sleep surface, setting at least a portion of the sleep surface to a first temperature for a first period of time, the first period of time being less than a total period of time the user is expected to be asleep on the sleep surface during a sleep session;

wherein the setting of the at least the portion of the sleep surface to the first temperature occurs after receiving an indication that the user is asleep on the sleep surface.

2. The method of claim 1, wherein the first temperature is lower than a stable temperature of the sleep surface after the user is on the sleep surface and before the at least a portion of the sleep surface is set to the first temperature. (0)

3. The method of claim 1, wherein the first temperature is lower than a temperature at the sleep surface at a time of receipt of the indication that the user is asleep on the sleep surface. (0)

4. The method of claim 1, wherein the indication that the user is asleep on the sleep surface is based on information from biometric sensors. (1) (0)

5. The method of claim 4, further comprising determining sleep stages of the user through processing of information from the biometric sensors. (2) (0)

6. The method of claim 5, wherein the first period of time concludes at a time the determined sleep stage of the user is a REM-dominant sleep stage. (1) (0)

7. The method of claim 6, further comprising: (0) (5)

determining an amount of time the user experienced slow wave sleep stages during the first period of time;

for a subsequent sleep session, receiving a further indication hat that the user is asleep on the sleep surface, and, after receiving the further indication that the user is asleep on the sleep surface, setting the portion of the sleep surface to a second temperature for the first period of time during the subsequent sleep session;

determining an amount of time the user experienced slow wave sleep stages during the first period of time of the subsequent sleep session;

determining that amount of time the user experienced slow wave sleep stages during the first period of time of the subsequent sleep session is longer than the amount of time the user experienced slow wave sleep stages during the first period of time; and

in response to determining that the amount of time the user experienced slow wave sleep stages during the first period of time of the subsequent sleep session is longer than the amount of time the user experienced slow wave sleep stages during the first period of time, setting the portion of the sleep surface to the second temperature during the first period of time during further subsequent sleep sessions.

8. The method of claim 5, wherein the first temperature is based on a stored first value indicating the first temperature, and further comprising: (3) (4)

storing an indication of amount of time for which the user is in a slow wave sleep stage during the first period of time;

subsequently setting the portion of the sleep surface to a different temperature, for at least a second period of time;

determining that an amount of time the user is in a slow wave sleep stage in the second period of time with the sleep surface set to the different temperature is greater than the amount of time the user is in the slow wave sleep stage during the first period of time; and

in response to the determination regarding the amounts of time the user is in the slow wave sleep stage, setting the first value to a value reflecting the different temperature.

9. The method of claim 8, wherein the subsequently setting the portion of the sleep surface to the different temperature occurs during a subsequent sleep session to the setting the portion of the sleep surface to the first temperature. (0)

10. The method of claim 8, further comprising, for a time after setting the first value to the value reflecting the different temperature, receiving a further indication that that the user is asleep on the sleep surface, and, after receiving the further indication that the user is asleep on the sleep surface, setting the portion of the sleep surface to the different temperature. (0)

11. The method of claim 8, wherein the different temperature is up to 5 degrees Fahrenheit below the first temperature. (0)

12. The method of claim 1, further comprising setting the portion of the sleep surface to a third temperature prior to a time the user is expected to sleep on the sleep surface, wherein the third temperature is greater than the first temperature. (0)

13. The method of claim 1, wherein the portion of the sleep surface is set to the first temperature by heating or cooling the sleep surface. (1) (0)

15. The method of claim 1, further comprising setting the portion of the sleep surface to a fourth temperature at a time the user is asleep, wherein the portion of the sleep surface is set to the fourth temperature a predetermined time before the user is expected to awake. (5) (0)

16. The method of claim 15, wherein the predetermined time before the user is expected to awake is longer than the time is takes for the sleep surface to reach the fourth temperature, such that the fourth temperature is reached before the user is expected to awake. (0)

17. The method of claim 15, further comprising: (0) (2)

18. The method of claim 15, further comprising: (0) (2)

19. The method of claim 15, further comprising: (0) (3)

20. The method of claim 15, further comprising: (0) (3)

21. A bed, comprising: (2) (4)

an adjustable temperature sleep surface;

a controller configured to command adjustment of temperature of the sleep surface based on information regarding a user of the sleep surface; and

biometric sensors coupled to the controller, wherein the controller is further configured to determine sleep stages of the user;

wherein the controller is configured to command adjustment of temperature of the sleep surface to a first temperature based on a sleep stage of the user indicating that the user is asleep.

22. The bed of claim 21, wherein the controller is configured to cease commanding adjustment of the temperature of the sleep surface to the first temperature after the user has completed a predetermined number of sleep cycles. (3) (0)

23. The bed of claim 22, wherein the controller is configured: (0) (4)

to determine the amount of time during which the user experienced slow wave sleep stages during the predetermined number of sleep cycles,

to command the temperature of the sleep surface during the predetermined number of sleep cycles for a subsequent sleep session to a temperature different than the first temperature,

to determine the amount of time during which the user experienced slow wave sleep stages during the predetermined number of sleep cycles with the sleep surface temperature different than the first temperature, and

to change a value for the first temperature to the temperature different than the first temperature if the user experienced a longer period of time in slow wave sleep stages during the predetermined number of sleep cycles with the temperature different than the first temperature.

24. The bed of claim 22, wherein the controller is configured: (0) (6)

to determine the amount of time during which the user experienced slow wave sleep stages during the predetermined number of sleep cycles,

to receive from a remote server a temperature value different than the first temperature,

to command the temperature of the sleep surface during the predetermined number of sleep cycles for a subsequent sleep session to the temperature different than the first temperature,

to provide information of the amounts of time to the remote server; and

to receive a new value for use as the first temperature from the remote server.

25. The bed of claim 22, wherein the controller is configured to, iteratively: (0) (4)

determine a period of time during which the user experienced slow wave sleep stages,

command the temperature of the sleep surface during the predetermined number of sleep cycles for at least one subsequent sleep session to a temperature different than the first temperature,

determine if the user experienced a longer period of time at slow wave sleep stages during the at least one subsequent sleep session with the sleep surface temperature different than the first temperature, and

change a value for the first temperature to the temperature different than the first temperature if the user experienced a longer period of time in slow wave sleep stages during the at least one subsequent sleep session with the temperature different than the first temperature.

26. The bed of claim 21, further comprising a thermoelectric device coupled to the controller, the thermoelectric device configured for heating or cooling air or fluid to be provided to the adjustable temperature sleep surface. (0)

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Application US20190335913

SLEEP PHASE DEPENDENT TEMPERATURE CONTROL AND LEARNING METHODS TO OPTIMIZE SLEEP QUALITY

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