Unlike traditional alarms that rely only on loud noise to abruptly pull you from your slumber, sunrise alarm clocks use gradual light exposure to cue your body to wake up. Over time (usually 20 to 40 ...

Sunrise alarm clocks use light to wake you up gradually in the morning. Shop expert-recommended sunrise clocks from top ...

Our reviewer sheds some light on adding brightness to your mornings with the best dawn simulation alarms, from Lumie and Philips to Hatch ...

If you're a very heavy sleeper, you already know a regular alarm clock usually doesn't get the job done, and phone alerts or easygoing sunrise alarms don't rouse those who are deep in an REM cycle, ...

You've probably experienced it—your alarm is set for 6:30 a.m., yet somehow your eyes snap open a few minutes before it goes off. There's no sound, no external cue, just the body somehow knowing it's ...