If you’ve ever felt tired after a full night’s sleep, you likely didn’t get enough deep sleep. This stage of sleep is considered to be the most restful, so getting enough of it is key for your overall ...

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 ...

Is deep sleep better than light sleep, even if it's shorter? Experts break it all down. FG Trade via Getty Images We’ve all been there: Maybe you were frantically packing for a trip and only got a few ...

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 ...

A new study has uncovered the mechanism by which the brain waves produced during deep sleep can predict blood glucose control. The discovery not only highlights the importance of sleep in managing ...

Your sleep might not be restful if there are visions of sugar plums dancing in your head — or your gut. A new study finds that eating a junk food diet filled with sugar, saturated fat and processed ...

You drag yourself through the afternoon feeling exhausted, finally give in to a nap, and wake up feeling worse than before you laid down. That groggy, disoriented, almost hungover feeling isn’t your ...

An app that turns consumer Apple Watches into tools for highly sophisticated sleep stage monitoring was developed by a team of researchers led by professor Joyita Dutta at the University of ...