A new study from the University of Sydney researched the effects that certain "bad habits" had on our health, and it's not great news. The researches found that over a six year period, regular oversleeping meant a 44 percent increased risk of death. That's strange and very unsettling news, especially considering getting less sleep than you should (less than seven hours a night) only decreased your mortality by nine percent.
Of course, there could be plenty of reasons why oversleeping is correlated with a higher mortality rate, like the fact that people who are already suffering from certain health conditions may feel like they need to sleep more. Still, maybe take this study as a reason to get your recommended eight hours a night - and not your preferred 12.