I'm one of those rare ones, I don't sleep. Well, not much anyway, 4 or 5 hours is more than enough for me to run all day. I've done it all my life, I keep thinking some day I'll actually sleep 8 hours or more.......
If 4-5 hours of sleep is more than enough to let you go all day and you can safely spend 18+ hours behind the wheel in a day, then you aren't one of the rare ones, you are the singularly unique One. You are the Neo of the Expediting Matrix.