I am not, I regret to say, a discreet and fetching sleeper. Most people when they nod off look as if they could do with a blanket; I look as if I could do with medical attention. I sleep as if injected with a powerful experimental muscle relaxant. My legs fall open in a grotesque come-hither manner; my knuckles brush the floor. Whatever is inside--tongue, uvula, moist bubbles of intestinal air--decides to leak out. From time to time, like one of those nodding-duck toys, my head tips forward to empty a quart or so of viscous drool onto my lap, then falls back to begin loading again with a noise like a toilet cistern filling. And I snore, hugely and helplessly, like a cartoon character, with rubbery flapping lips and prolonged steam-valve exhalations. For long periods I grow unnaturally still, in a way that inclines onlookers to exchange glances and lean forward in concern, then dramatically I stiffen and, after a tantalizing pause, begin to bounce and jostle in a series of whole-body spasms of the sort that bring to mind an electric chair when the switch is thrown. Then I shriek once or twice in a piercing and effeminate manner and wake up to find that all motion within five hundred feet has stopped and all children under eight are clutching their mothers' hems. It is a terrible burden to bear.