Medically reviewed by Sohaib Imtiaz, MD Key Takeaways Deep sleep is essential for health, making up 20% to 25% of total sleep time.Not getting enough deep sleep can raise the risk of problems like ...

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 ...

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 ...

Getting enough sleep is an important part of a person’s overall health. Poor sleep is a risk factor for cognitive issues such as memory loss. Researchers from Charité – Universitätsmedizin Berlin have ...

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 ...

If you find yourself asking, “How much sleep do I need?” you’re not alone. Between work, family, late-night scrolling and early morning alarms, getting enough rest can feel impossible. But sleep isn’t ...

This is an archived article and the information in the article may be outdated.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 ...