Apple Inc. has confirmed a significant issue with iPhone alarms failing to sound, causing users to oversleep.

The malfunction appears to be rooted in the iPhone's Clock app, with alarms going silent or not triggering at the set time.

The precise cause of the alarm glitch is currently unknown, and Apple has not yet provided an official fix.

User reports on Reddit suggest the 'attention awareness' feature could be related to the problem.

Apple is developing a remedy expected to be part of the forthcoming iOS 17.5 update.

The iOS 17.5 update is also set to introduce a 'repair state' feature, allowing Find My iPhone to remain active during device repairs.

As an interim measure, users should manually verify alarm settings and volume, and consider using a separate alarm clock.