Why not sleep 8 hours a day if needed (Personally, I'm even more useless on less than 7-8 hrs of sleep)? I am sure you can reinvent the wheel and then some in

Why not sleep 8 hours a day if needed (Personally, I'm even more useless on less than 7-8 hrs of sleep)? I am sure you can reinvent the wheel and then some in what's left. People are productive when they are productive, you can come up with the idea to change the world in 60 mins...or never in your lifetime. If Einstein had lived to 150 it's not a given that his contribution to the would would have 2X...