Studies have shown people who sleep more than average have a higher risk of health problems and death. But is sleeping a lot a symptom or a cause?

If you spend any time in the wellness corners of TikTok or Instagram, you’ll see claims women need one to two hours more sleep than men. But what does the research actually say? And how does th ...

We are all familiar with sleep debt, or the gap between how much sleep you need and how much you actually get. But until now, it wasn’t clear how the brain tracks sleep loss – or compels us to ...

Learn facts about sleep, during which the body rests, recuperates and performs essential repairs.

Waking up early when you still feel tired is frustrating. We've asked the experts why you keep waking up after just 6 hours of sleep.

While lack of sleep is one of the biggest reasons why people can feel tired, it's not the only explanation. Here are five other reasons you may feel tired.

While lack of sleep is one of the biggest reasons why people can feel tired, it’s not the only explanation. Here are five other reasons you may feel tired.

Here’s what sleep scientists and doctors say about how much you really need — and whether your gender plays a role. Sleep is still a mystery, despite how critical it is for our health.

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

The amount of sleep we need changes throughout our lives. Experts say when you’re trying to figure out how much sleep you need, it's important to listen to your body.

“The reasons aren’t entirely clear, but it’s an essential thing that we all do,” said Dr. Rafael Pelayo, a sleep specialist at Stanford University.