I turn the phone off at night and whether on or off the charger it will randomly turn on. There is no pattern or circumstance, it just turns on. Since others have had this issue I tried the solutions to no resolution.
iPhone 14 Plus, iOS 16
If you turn the phone off and then plug it in to the charger, it will turn on. That is normal and expected behavior. Why it might turn on at other times is something that would be hard to answer without a lot more data.
However, there are good reasons for not turning your phone off at night. The most important one is that, if you have the phone plugged in, connected to WiFi and the screen locked, it will automatically back itself up to WiFi every night. That means you would never lose more than a day's worth of data if your phone were lost or stolen. Also, your phone will be charged and ready to go in the morning.
See also:
iPhone 14 Plus Turns on by Itself
