Sleep is key to brain and body function, memory, physical performance, preventing chronic disease and improving mental health ...

Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

This small temperature shift may make falling—and staying—asleep easier. Sleep can be a fickle thing: sometimes we succeed in staying off our phones and properly winding down before bed, but still ...

Getting enough sleep is an important part of a person’s overall health. Poor sleep is a risk factor for cognitive issues such as memory loss. Researchers from Charité – Universitätsmedizin Berlin have ...

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 ...

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 ...

It might be worth working a little bit harder to get that much-desired, but often elusive, good night's sleep. Deep sleep clears the mind of waste just as a "dishwasher" cleans dirty plates and ...

If heartburn is keeping you awake after overindulging in a large meal, try lying on your left side. Stanford scientists say ...

(CNN) — Need another reason to prioritize your sleep? Not spending enough time in the two deep stages of sleep — slow-wave and rapid eye movement, or REM, sleep — may hasten the deterioration of parts ...

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 ...

Share on Pinterest Research has found that deep sleep is crucial for the formation of memories. Amor Burakova/Stocksy Getting enough sleep is an important part of a person’s overall health. Poor sleep ...