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, ...

If you’ve been wanting to spend less time on your phone, a new alarm clock could help. Setting an alarm at night and waking via your phone first thing in the morning can lead to getting stuck in a ...

This article is a part of CNN Underscored’s Guide to Sleep, a weeklong focus on everything you need to sleep better. We’ll be featuring new products, tips and exclusive deals all week, so check in ...