Deep sleep is critical to cognitive function. It helps to consolidate memory, focus, and increase problem-solving abilities. When you sleep well, your brain processes information more efficiently, ...

Few experiences rival the calm satisfaction of falling asleep easily and waking up feeling fully rested. But sleep is more than a luxury or idle downtime, it’s a vital biological process that supports ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Sleep may be the foundation of health, but there’s a lot of confusion around it. How much to get? How to ...

Two particular phases in your nightly routine seem to play outsize roles in cognitive health. By Mohana Ravindranath A good night’s sleep isn’t just about the number of hours you log. Getting quality ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Need another reason to prioritize your sleep ...

Now that we have wearables tracking our every move, a lot of us can look at stats that supposedly tell us how well we’ve slept the night before. But sometimes, it can feel like your sleep tracker is ...