I'm 30 and get around 5-7 hours of sleep every night and am usually fine with that. I use a fitbit and actually have a log of all my data. Here's the graph of t

I'm 30 and get around 5-7 hours of sleep every night and am usually fine with that. I use a fitbit and actually have a log of all my data. Here's the graph of the past 30 days for me: http://socialblade.com/c/2011-09-17_1140.png http://socialblade.com/c/2011-09-17_1140.png