You're probably not getting enough sleep, but you might not be as far off the mark as you think.
Most sleep experts would offer that aiming for between seven to nine hours of snooze time a night is optimal for feeling refreshed and productive the next day. In a new report, however, the Wall Street Journal writes that researchers are closing in on what may just be that magic nightly number--and it's not nine hours, or even eight as once believed.
Via The Learning Factor
New research zeroes in on the time you should spend snoozing but take it with a dose of skepticism.