According to a study published in 2019, it can take the brain 30 minutes to transition from a state of sleeping to awake — which is all the more reason to use a reliable alarm clock so you don’t ...

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 ...

No one likes getting up in the morning — unless you're an early bird — but a good alarm clock makes waking up just a little easier. We've tried dozens of alarm clocks, from the gentle, gradual ...