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, ...

When a carbon monoxide alarm breaks the quiet with a random chirp, it is tempting to brush it off as a glitch. In reality, those short beeps are coded messages about everything from a dying battery to ...

Every smart smoke alarm I’ve tested has one potentially fatal flaw, trading fewer nuisance alarms for a risky sensor strategy ...

The best alarm clocks help you wake up on time and ready to face the day. We picked our favorites, including options for ...

If your smartphone doubles as your alarm clock, you may be losing out on needed shut-eye as texts, alerts and other notifications come in throughout the night. Constant loud noise and bright lights ...