Jobs must sleep well, too.

FORBES: What Do Steve Jobs And Warren Buffett Have In Common?

"I'm going to sleep well and something tells me you will too, " the new pope told the cardinals.

WSJ: Humility in Pope Francis' First Hours

Some of the interactions are well known already, such as how drinking too much water and interrupt sleep by waking you up to use the bathroom, or how consuming heavy and spicy foods can keep you up, but there may be less apparent effects as well.

CNN: Does your diet influence how well you sleep?