It's a very good question. I think they're equally important, but there is one curiosity I'd like to raise: even on very little sleep, you can operate on a phys

It's a very good question. I think they're equally important, but there is one curiosity I'd like to raise: even on very little sleep, you can operate on a physical level, even through endurance. Also, the more exercise you're getting will improve your overall health, which reduces your need for sleep oddly. Therefore it might follow that exercise is more important because that's how you can reduce your dependency on sleep.