Yes, 6-7 hours for me is it. And it has gotten worse since I started doing these epic crusade bike and car projects back in 2009. I go to sleep around maybe 10 pm thinking about them, looking at parts catalogs and then often wake up at 4 AM still thinking about them and not able to go back to sleep. If I look at the clock when I wake up, I'm done. Might as well get up because I'm not going back to sleep if I look at the clock.
My rusty-floored, dead since about 1984, locked up motor, GM A-Body, 1970 El Camino project is the latest in this line of vehicles to afflict me. But it'll be a good car (trar? Or maybe "cruck"?) in perhaps two years when I'm done. Stroker 383 crate motor . . . here I come.
Rick