Wearable device for sleep assistance

1. A wearable device for sleep assistance, comprising:

at least one sensor to detect one or several vital signs of a user of the wearable device;

a memory to store a set of sleep aid techniques,

each sleep aid technique includes instructions facilitating the user to fall asleep and is associated with a doze-off time estimated for the sleep aid technique to affect the user following the instructions;

an interface to receive a selection of a sleep aid technique from the set of sleep aid techniques and to render the instructions of the selected sleep aid technique to the user; and

a processor to update the doze-off time based on the vital signs of the user, to determine, based on the updated doze-off time, a schedule for executing at least one predetermined action, and to execute the predetermined action according to the schedule.

2. The wearable device of claim 1 , wherein the processor adds the updated doze-off time into a historical sleep data of the selected sleep aid technique and determines the doze-off time for a subsequent invocation of the selected sleep aid technique using the historical sleep data.

3. The wearable device of claim 2 , wherein the processor determines the doze-off time by averaging multiple updated doze-off times added to the historical sleep data.

4. The wearable device of claim 1 , wherein the processor selects the sensor from a set of sensors of the wearable device configured to track actions of the user following the instructions and extends the doze-off time when the user, after the selection of the sleep aid technique, is not following the instructions.

5. The wearable device of claim 1 , wherein the processor updates the doze-off time based on a correlation between at least some values of the vital signs of the user with fractions of the doze-off time.

6. The wearable device of claim 1 , wherein the memory stores a set of sleep aid techniques including a first sleep aid technique associated with first vital signs, first instructions and a first doze-off time and a second sleep aid technique associated with second vital signs, second instructions and a second doze-off time, wherein the first vital signs are different from the second vital signs, the first instructions are different from the second instructions, and wherein the first doze-off time is different from the second doze-off time.

7. The wearable device of claim 1 , wherein the interface includes one or combination of a display device to display the instructions of the sleep aid technique and a speaker to pronounce the instructions of the sleep aid technique.

8. The wearable device of claim 1 , wherein at least one predetermined action include one or combination of locking or unlocking a door, increasing or decreasing an amount of emitted light, turning an appliance OFF or ON, and increasing or decreasing a volume of an audio emission at an audio device.

9. The wearable device of claim 1 , wherein the memory stores a set of tipping points defining doze-off stages of the user and stores a set of predetermined actions associated with different doze-off stages, wherein the processor determines a current doze-off stage of the user based on current values of the vital signs and executes the predetermined action associated with the current doze-off stage.

10. A method for sleep assistance to a user of a wearable device, comprising:

detecting one or several vital signs of the user of the wearable device;

selecting a sleep aid technique associated with one or more instructions facilitating the user to fall asleep and a doze-off time estimated for the sleep aid technique to affect the user following the instructions;

updating the doze-off time based on the vital signs of the user;

determining, based on the updated doze-off time, a schedule for executing at least one predetermined action; and

executing the predetermined action according to the schedule, wherein at least some steps of the method are performed by a processor of the wearable device.

11. The method of claim 10 , further comprising:

adding the updated doze-off time into a historical sleep data of the sleep aid technique; and

determining the doze-off time for a subsequent selection of the sleep aid technique using the historical sleep data.

12. The method of claim 10 , wherein the selecting comprises:

acquiring a set of sleep aid techniques including a first sleep aid technique associated with first instructions and a first doze-off time and a second sleep aid technique associated with second instructions and a second doze-off time, wherein the first instructions are different from the second instructions, and wherein the first doze-off time is different from the second doze-off time;

rendering the set of sleep aid techniques on a graphic user interface (GUI) of the wearable device;

receiving a selection of the first sleep aid technique in response to the rendering.

13. The method of claim 10 , further comprising:

tracking actions of the user following the instructions of the sleep aid technique;

and extending the doze-off time when the user, after the selection of the sleep aid technique, is not following the instructions.

14. The method of claim 10 , wherein at least one predetermined action include one or combination of locking or unlocking a door, increasing or decreasing an amount of emitted light, turning an appliance off or on, and increasing or decreasing a volume of an audio emission at an audio device.

15. A non-transitory computer readable storage medium including a program embodied thereon executable by a processor for performing a method, the method comprising:

detecting one or several vital signs of a user of a wearable device;

selecting a sleep aid technique associated with one or more instructions facilitating the user to fall asleep and a doze-off time estimated for the sleep aid technique to affect the user following the instructions;

updating the doze-off time based on the vital signs of the user;

determining, based on the updated doze-off time, a schedule for executing at least one predetermined action; and

executing the predetermined action according to the schedule.