You can also remove the tone altogether if you want.

Using a melodic song you enjoy as an alarm sound can potentially reduce feelings of grogginess upon waking. However, waking suddenly from sleep may have negative effects. Many people use an alarm ...

Staying aware of your surroundings matters. That includes hearing smoke alarms, appliance beeps or a knock at the door. Still, real life gets busy. You wear headphones. You get focused. Sounds slip by ...