Android keeps separate volume levels so a quiet video does not mean a quiet alarm. Here is what each does.
The four sliders
- Media: music, videos, games.
- Ringtone: incoming calls.
- Notifications: message and app alerts.
- Alarm: alarm clock apps.
Find them in Settings → Sound and vibration. You can also press a volume button and tap the three-dot or settings icon to expand all sliders.
A good night setup
- Set the Alarm slider to a level you can hear from across the room.
- Turn on Do Not Disturb on a schedule, for example 22:00 to 07:00.
- In its settings, confirm Alarms are allowed. Leave calls and messages silenced, or add only your favourite contacts.
- Consider a bedtime mode if your phone has one; it combines Do Not Disturb with a dimmed screen.
Gentle versus loud
A rising volume helps you wake without a shock. If you tend to sleep through, choose a louder tone and avoid the snooze button. More ideas in waking up more easily.
If an alarm still fails, work through the alarm-not-ringing checklist.