Hachiko
Look who's back!
Not only does this article receive a Yukari Award from Mr. Hachiko (yukari oversleeps-see the manga), but it seems it has substantial merit, IMHO.
Yahoo! News
Spending too many hours in bed each night can cause as many problems as getting too few hours of sack time, according to a University of California, San Diego study in the journal Psychosomatic Medicine.
The study found people who sleep more than eight hours a night (long sleepers) and people who get less than seven hours of slumber both report more sleep complaints than people who get just the right amount of shuteye -- between seven and eight hours per night.
Yahoo! News