Just another sleep analogy

Waiting for sleep is like waiting for a late bus; you're there on time, standing with your money in hand, after a few moments you lazily shove your change deep into your pocket, after a few more minutes you decide to sit down. Just as you get comfy you see a bus coming your way so you jolt up in time to realize it's not even your bus. Now you're back at stage two. Do you bother to sit back down? Of course you do because you really don't have many other options. Sleep is a complicated waste of time, but you would literally be no where without it.