And yet a startling one in three adults in the US are sleep-deprived. Meanwhile, newer research shows that sleeping too much, around nine hours or more, is linked to an increased risk of death by ...

New studies highlight how sleep quality—not just quantity—can protect cognitive health, especially in older adults.

How much sleep is enough—and how do we get it? Infants usually sleep between 16 and 18 hours a day, children (grades 1 through 12) usually need about nine-and-a-half hours of sleep a night, and ...

And changes in sleep patterns can be an early sign of dementia itself. Here’s how experts think about these various connections and how to gauge your risk based on your own sleep habits.

Study reveals how much sleep each country gets - so, do you snooze more or less than everyone else in Britain? READ MORE: Images reveal what can happen to your body without enough sleep ...

How much sleep you need depends on many different factors, including your age, genetics, and how well you sleep at night. However, 7 to 9 hours per night is ideal for most adults.

In an analysis of the sleep habits of over 72,000 people, researchers identified a particular pattern that can dramatically spike the risk of major cardiovascular problems. The good news is that ...

Too much sleep, too little sleep, or sleep where you toss and turn, and spend half the night staring goggle-eyed at the ceiling: All of these make you more likely to develop diabetes.

How much sleep should you be getting? Adults over 18 should aim for seven to nine hours of sleep per night, according to the Cleveland Clinic, though individual needs may vary.

Is the much vaunted eight hours of sleep enough to avoid health issues? Experts discuss why its important to wake up feeling refreshed.