Turn off the Do Not Disturb mode or the Do Not Disturb period on the watch.
When I just woke up, the watch had not left the sleep mode, and the wrist-lifting bright screen was not available at this time. It is recommended that you click the watch button or do activities to exit the sleep mode before using the wrist-lifting and bright screen function.
Open the standby dial, the wrist is not bright. You can turn off the standby dial and light up the screen with your wrist.
It is not supported to raise the wrist to brighten the screen during sleep, so as to avoid frequent accidental brightening affecting sleep.