Sometimes the constraints of life, work, kids, and smartphones get in the way. In reality, many people sleep less than eight hours a night, and some sleep more. Where does the "eight-hour rule ...

Koreans are relatively sleepless people, with individuals having an average of 7 hours and 41 minutes of overnight sleep a day. This is short of the 2016 OECD average of 8 hours and 22 minutes.

If you find yourself regularly sleeping six hours a night, you're not alone. Although most of us know sleep is essential for ...