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 ...

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 ...

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 ...

Neuroscientists have discovered a surprising new source of deep-sleep brain waves, shaking up our understanding of the architecture of sleep and how we treat sleep disorders. Our sleep is divided into ...

A good night’s sleep does more than just help you feel rested—it might literally clear your mind. A new study published January 8 in the Cell Press journal Cell shows how deep sleep may wash away ...

Light sleep is the beginning of your sleep cycle and your body's way of winding down. Breathing, heart rate and muscle changes prepare your body for the deeper sleep to come. Light sleep is broken ...

“There is increasing evidence that sleeping in a cooler room can, in fact, improve sleep quality, but it’s not just about ...