Solution: Turn off automatically update during the night, and do it manually when you have time or don’t have alarms set for morning. Ensure ringer volume is up, this is different than media volume. Easiest way to turn it up is from the home screen when no sounds are playing. Check your alarms to make sure the sound isn’t set to “None.”, Since updating to iOS 10, my alarm clock (which is set to play an hour-long song) is silencing itself after 15 minutes. It doesn't technically snooze itself, as the snooze button is still present on the lock screen after the music cuts. I've tried disabling the bedtime features, without help., Your iPhone’s alarm will stop by itself after precisely 15 minutes of ringing, however, it will only stop for one minute & thirty seconds until the ringing persists again. The cycle will continue until the alarm is turned off., Is there a setting, or an alternate alarm clock app, that will turn the noise off after some specified time of being ignored? The feature I was looking for is called (on the apps I’ve found that have it) “auto-dismiss”. I’m trying Alarm Clock Xtreme Free, which offers this feature; if I’m happy with it I’ll upgrade to the paid version., So the alarm on my S5 shuts itself off after 1 minute.. how the heck do I keep it running so I have to actually get it up and turn it off? I can't help you with the stock alarm clock, but, Open the Clock app, tap the three-dot menu button in the top-right corner of the screen, tap Setting > Gradually increase volume (under the Alarms heading), then pick a setting—anything from five seconds to a full minute..