1. Unlock the screen of iphone 6s to the home page. As shown in the figure.
2. Find the clock in the application of the mobile phone and turn it on. As shown in the figure.
3. Enter the clock application, and then select Go to Bed at the bottom of the screen. As shown in the figure.
4. On the detailed page of bedtime, turn on the button switch after bedtime. As shown in the figure.
5. Set your own bedtime and wake-up time, and the iphone 6s will automatically analyze sleep. As shown in the figure.