As maddening as nonrestorative sleep night after night can be, the consequences go much deeper. Left unaddressed, sleep apnea ...

Healthy adults generally require between 7 - 9 hours of quality sleep. However, approximately 1 in 3 American adults admit to regularly getting less sleep than they need. This can lead to sleep ...

Deep sleep is one of the most essential stages of the sleep cycle, playing a vital role in how well you feel both physically and mentally. Often referred to as slow-wave sleep or delta sleep, this ...

Deep sleep, like all sleep stages, helps you feel refreshed when you wake up. The proportion of time you need to spend in ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Yet even if you’re a rock star at snoring ...

When Alison McGeary of New Jersey had twins 13 years ago, her sleeping patterns changed and never returned to normal. “My main issues started as waking up multiple times during the night. I would not ...

There’s a mountain of reasons why you might feel fatigued or tired on any given day, many of which are easy to brush off. You probably just didn’t sleep well or properly fuel yourself, or you’re on ...

In a world where hustle culture prevails and screens keep us awake long past sunset, feeling tired has become our collective baseline. Many of us blame our packed schedules and midnight scrolling ...