Are Many iPhone Models Experiencing Sudden Power Offs Overnight? Have You Been Affected?

In a Reddit thread, a user complained that their scheduled iPhone alarms did not ring. Others also faced similar issues, suggesting a possible overnight shutdown of iPhones. Information from Reddit indicates:

'Check your pin settings to see if it was off overnight. Many iPhones turned off for a few hours last night. In my case, it turned back on 1 minute before my alarm.'

Some others noted that they had to re-enter passwords in the morning, a sign that the iPhone had rebooted or shut down overnight. 9to5Mac shared this issue earlier in the week, and similar situations were reported by many users on the MacRumors forum:

Last night, my iPhone with iOS 14.3 automatically restarted (around 01:00 AM CET on October 10). The same happened to three of my friends with identical iPhones and iOS versions, and to another person with a different iPhone, also running the same iOS version.

You can determine whether your ‌iPhone‌ shuts down overnight by opening the Settings app, navigating to Battery, and checking the charging status over the past 24 hours. Gaps indicate that your ‌iPhone‌ was off for a period of time.

This issue affects various iPhone models and other devices, indicating that it could be an iOS 17 bug.