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 ...

Everyone knows getting a good night’s sleep matters. And while naming the stages of the sleep cycle may be difficult, the benefits of deep sleep are felt every morning. For a healthy adult ages 18 to ...

Wearable health trackers provide much insight into not only how much sleep you get, but how much of each stage you get. Deep sleep is important for physical restoration, and REM sleep is critical for ...

A large study tracking more than 95,000 people suggests that how you sleep may be linked to your risk of developing dozens of diseases. People who spent more time in REM sleep had lower risks of 83 ...

A good night's sleep does more than just help you feel rested--it might literally clear your mind. A new study shows how deep sleep may wash away waste buildup in the brain during waking hours, an ...

Greater amounts of REM and deep sleep were associated with lower risks of dozens of diseases, and less than 5 hours of total sleep was associated with high disease risks, according to a new study ...

Researchers estimate that every three seconds, someone in the world develops dementia. Inadequate sleep is a modifiable risk factor for dementia. A new study says as little as a 1% reduction in deep ...

Evening coffee has sparked controversy for years. Some people fall asleep without difficulty, while others toss and turn for half the night. However, a growing body of research suggests the question ...

Nearly 1 million HealthCare.gov enrollees who paid full price are getting $500 checks. See who qualifies and how to avoid scams tied to the payments. New CPSC recalls cover Amazon baby bath seats and ...

A deep slumber might help buffer against memory loss for older adults facing a heightened burden of Alzheimer’s disease, new research from the University of California, Berkeley, suggests. Deep sleep, ...

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 ...