This little-known iPhone setting could be the reason why your alarms aren’t working

If you ever wanted a legitimate excuse to say you missed your alarm, Apple may have just given you one, albeit unintentionally. That's because a number of iPhone users are reporting that their phone alarms aren't going off when they should.

About RedditiPhone users have noted that despite setting alarms on their phones, the actual alarm bell/sound never went off. And apparently these alarms weren't set to reappear, so there shouldn't have been any reason to silence or reset them until they were acknowledged. In these reports, the alarm only turns on the screen, but there is no sound.