For the past year, I've gotten about 7 hours of sleep. I was lazy, unproductive, and lethargic. For about a week, I've forced myself to sleep between 8:30 and 8:45 PM to get more sleep. Crazily enough, I've been far more productive and a much better person to be around in my 15 waking hours than I have with my 17 waking hours. I'll make an update to this post down the line to truly see how much I've changed.
Wait until you hit your 40s and 50s.
First, you can't sleep that long without peeing. Second, you can only sleep 6-7 hours max. Its weird. I used to sleep 8-10 hours, no problem.