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 helps you feel refreshed and typically makes up 20–25% of total sleep time, or about one to two hours per night for adults. If you're not sleeping soundly, certain strategies can help ...

If there’s one thing we love to do as adults, it’s complain about how tired we are and how little sleep we’re getting. Often ...

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 deep, undisturbed sleep should be the norm, but modern lifestyle is taking a toll on the sleep cycle. Research says that maintaining a consistent sleep schedule is responsible for proper heart and ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Need another reason to prioritize your sleep ...

Unlock peak brain performance with simple sleep adjustments. Dr Vass, a longevity doctor, reveals how optimizing your sleep environment and habits can enhance brain function. Cooling your room, using ...