How much sleep do you need at different ages? Doctors explain age-wise sleep requirements, why sleep needs change across life stages, and when poor sleep becomes a health concern.

7-9 hours remains the guideline, but not everyone needs that much sleep. Some need less, some need more. Sarah Mitroff/CNET If you find yourself asking, “How much sleep do I need?” you’re not alone.

Chances are, if you’re reading this, you got some sleep last night. But are you feeling rested? Experts say it's an important question to consider. Most of us spend a third of our lives sleeping, but ...

Medically reviewed by Smita Patel, DO Most adults need 7-9 hours of sleep for optimal recovery. During deep sleep, your body ...

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 ...

We all know the power of a good night’s sleep. You wake up refreshed, energized and ready to take on the day. But what many consider a luxury or an occasional win, should be a nonnegotiable part of ...

You probably already know that a solid night’s rest can change everything. Your mood lifts, your mind sharpens, and your body ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Chances are, if you’re reading this, you got ...