I've noticed that if I'm getting inadequate sleep, yes, motivation and concentration are in limited supply. But if I'm working on a project non-stop, and I hav

I've noticed that if I'm getting inadequate sleep, yes, motivation and concentration are in limited supply. But if I'm working on a project non-stop, and I have that momentum, I can go without little to no sleep. ...I wouldn't push anything to prod after an allnighter though.