That question wouldn’t have occurred to me, but it did to the French philosopher Montesquieu in his analysis of the decline of Rome. He’s no slouch. He probably was one of the two or three writers who had the most influence on the thinking of the Founding Fathers.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.