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, ...

Add Yahoo as a preferred source to see more of our stories on Google. There are plenty of loud alarm clocks for heavy sleepers, including phone apps that make you solve a math problem and rolling ...

We may receive a commission on purchases made from links. Getting seven to eight hours of sleep is ideal for most adults, but what's ideal isn't always realistic. With conditions like insomnia and ...

Add Yahoo as a preferred source to see more of our stories on Google. alarm-clock-group-product-photo-1 Many people need to set an alarm to wake up on time in the morning. But using your phone for ...

With life’s busy schedule, keeping track of time without a clock is challenging. We’re so dependent on this device that even when we go to sleep, we need an alarm clock to remind us to wake up. Not ...

We may receive a commission on purchases made from links. Still using your phone as your alarm clock? It seems convenient, until you discover that sleeping next to a charging phone all night might not ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Alarm clocks might seem ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Not everyone can be a morning person. Some people (us included) feel the pull to stay in bed pretty ...