Sleep may be the foundation of health, but there’s a lot of confusion around it. How much to get? How to make it easier? And if a watch tells you your time in bed sucked, did it? Thanks to smart ...

You might imagine that there is a short and sharp answer to the question How Long do Cats Sleep? But alas there are lots of factors to consider when it comes to how long cats sleep and how long they ...

A lack of sleep can affect your blood pressure, causing it to rise and increasing your risk of hypertension. Learn why and ways to improve your sleep.

In TODAY.com's Expert Tip of the Day, a sleep expert recommends against drinking coffee after this time to prevent bedtime disasters.

Researchers studied a group of adults to learn more about the connection between sleep quality and brain aging. The scientists used MRI scans to determine each person’s ‘brain age’ and compared that ...

Two nurses had a similar amount of sleep, but one was alert, and the other one was tired. A mathematician came up with an idea for solving why.

You might be tempted to sleep in after a late night—but scientists have found that it’s better for your brain and heart health to stick to your regular schedule.

I’M a teacher, and here’s exactly how much time your child should be glued to their devices – broken down by age so you can keep their screen time in check. From toddlers to teens, too much ...

Chuck the gadgets, the fads and the alarm. Circadian research reveals how important your body’s internal clock is to blissful slumber.

Apple’s September event put the spotlight on iPhones, but the Apple Watch Series 11 quietly picked up some big quality-of-life changes. The new watch looks the same as the Series 10, but there are ...