Is 5 Hours of Sleep Enough? What Adults Should Know

You wake up in a bedroom at 6:15 a.m., do the math. Midnight to 5:15. A little scrolling before bed. Maybe 5 hours of sleep total. The question sounds reasonable: is 5 hours of sleep enough if you can still get through work, school drop-off, errands, and dinner? For most adults, 5 hours of sleep … Read more

REM vs Deep Sleep: What Matters More for Energy?

You wake up, open your sleep tracker, and see two numbers that suddenly make the night feel like a report card: REM sleep and deep sleep. One looks high, the other looks low, and now you are wondering which one actually matters more. That is where the REM vs deep sleep question becomes useful, especially … Read more

How Much REM Sleep Do You Need? Simple Chart

You wake up, check your sleep app, and see a REM sleep number that makes you question the whole night. Maybe it says 44 minutes. Maybe it says your REM score was low, even though you were in bed long enough. Now you are wondering the real question: how much REM sleep do you need … Read more

Why Do I Wake Up Tired Even After 8 Hours of Sleep?

You go to bed at a reasonable time. You track your sleep. You get a full eight hours. The alarm goes off, and instead of feeling refreshed, you feel heavy, groggy, and unmotivated. If you wake up tired even after 8 hours of sleep, you’re not alone. Many busy American adults assume that sleep duration … Read more