In 2014, Americans in their 20s reported sleeping 556 minutes per day, up from 545 in 2004.
I would have guessed I was on the other side of average at 8 hours per night. I've heard so much growing up about the necessity of proper sleep, as if not getting enough sleep was a societal problem almost on par with the obesity epidemic. I actually thought that I slept too much. Most adults in my family sleep somewhere between 5-6 hours, I think.
Also,I'm glad to see the length of time spent "travelling" has gone down, presumably from people opting for shorter commutes. I still can't Imagine losing an hour of every day to commuting, though. That's two weeks of your life out of every year.