IF time is money, then sleep is theft. Today’s cult of busyness regards sleep as a defect that threatens to render people competitively unfit. In a recent article for the Guardian, Lucy Rock wrote about CEOs’ “competitive sleep deprivation,” with top executives sleeping for a mere three to four hours, mimicking Margaret Thatcher’s four-hour sleep cycle when she was in office…. Such enthusiasm for sleeplessness seems to make an executive virtue out of a capitalistic necessity. But it has deep epistemological roots.