could perform at their peak with only a couple of hours’ sleep. “Suppose a human could be engineered who slept for the same amount of time as a giraffe (1.9 hours per night). This would lead to an approximately twofold decrease in the casualty rate. An adversary would need an approximately 40% increase in the troop level to compensate for this advantage.” The report goes on to look at the effects of ampakines, a class of drugs that modulate neurotransmitters in the brain, to remove the effects of sleep deprivation. Eventually, humans will figure out a way to get rid of sleep. Spending a third of your life unconscious won’t be a luxury anymore; it’ll be something only the poor will be forced to do. At which point, we may need a whole new sort of sleep revolution.