Why is there no sleep data in the sleep widget interface of the Xiaomi Smart Band 9 after waking up?

If you use the [Sleep] APP during sleep, the band will recognize that you have woken up and are checking the sleep data on the band. Also, it will be recorded as your wake-up time.
Please check whether the left and right sliding of the widget is caused by a mistaken touch after falling asleep. In order to prevent the sleep from completing by mistake, when the algorithm does not fully recognize the end of sleep, sliding the sleep widget will not record it as the end of sleep and refresh the sleep data, so you will see the data of the sleep widget is not displayed properly when you just wake up. The sleep data is refreshed as soon as you tap the sleep widget to enter the [Sleep] APP. After that, you can swipe to the widget again to view your sleep data.