If a thousand tired people laid down on the ground head-to-foot, I would be more tired than all of them. Granted, this would be because after lying down they would fall asleep, and you really have to be awake to be counted as tired. But I am still quite tired.
Sometimes I think that if I had a desk with an inbox and outbox on it, it would be a good idea to label the inbox “Promises To Keep” and the outbox “Miles To Go Before I Sleep”. I think that now, but this is really only because, as I mentioned earlier, I am quite tired.