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.

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 ...

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 ...

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 ...

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 ...

Share on Pinterest Research has found that deep sleep is crucial for the formation of memories. Amor Burakova/Stocksy Getting enough sleep is an important part of a person’s overall health. Poor sleep ...

This is an archived article and the information in the article may be outdated.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

When you don’t get enough sleep, your whole body can feel off. In college, I tried to fit everything into my schedule, including staying up late to study and waking up early to train for a marathon. I ...

If you’ve ever suffered a night of poor sleep—like, you got about three hours less than you wanted—you may have found yourself in a doom spiral, thinking that you’ll never sleep well again (been there ...