Dangerously Sleepy: Overworked Americans and the Cult of Manly Wakefulness: Summary & Key Insights

In the early factories and workshops of the nineteenth century, sleep became the first casualty of progress. I uncover in this period the origin of a uniquely American faith in wakefulness—a belief that a man who could labor beyond fatigue was demonstrating both moral and physical superiority. Industrial capitalism demanded discipline above all, and employers found virtue in the sleepless laborer. The Protestant work ethic, fused with new industrial imperatives, made rest seem like weakness and sleep a form of idleness.

Men in textile mills, ironworks, and railroads regularly endured twelve- to sixteen-hour shifts, six or seven days a week. Many workers prided themselves on their endurance, even as fatigue drove up injury rates and shortened lives. Early labor reformers pointed to the toll of such punishing schedules, yet they were up against a powerful cultural myth—that manliness itself was measured in wakefulness. This ideology not only justified exploitation but shaped a broader sense of identity. To fall asleep on the job was not simply to fail one’s employer; it was to fail as a man.

During the late nineteenth and early twentieth centuries, as medicine became more professionalized, scientists began to study sleep and fatigue with new rigor. But their findings rarely challenged the economic and cultural imperatives of the day. Medical authorities often aligned with industry, framing fatigue as an individual deficiency rather than a systemic hazard. Sleep was necessary in theory, but in practice, the productive body was celebrated precisely for overcoming its biological limits.

Even within the military, wakefulness was glorified. Soldiers were trained to fight fatigue as part of the moral battle of masculinity itself. Doctors and physiologists tinkered with stimulants and training methods designed to reduce sleep needs, as if human limits were obstacles to progress rather than warnings of vulnerability. Thus, early sleep science did not relieve workers of their burdens; instead, it gave institutional legitimacy to the notion that true men could conquer their own exhaustion.