In his 1963 scifi story "The Invincible," the Polish writer Stanisław Lem imagined an artificial species of free-floating nanobots which roamed the atmosphere of a far-off planet. Like tiny bugs, the microscopic beings were powerless alone, but together they could form cooperative swarms to gather energy, reproduce, and ultimately defend their territory from predators with deadly force. Unlike the story's human protagonists, the "black cloud" of bots was incapable of reasoning beyond the simple logic of animal instincts.
Lack of sleep can have disastrous consequences for the DoD. A report found that lack of sleep contributed to military safety mishaps and multiple deaths.