On any given day, an estimated 60,000–80,000 people are housed in restricted housing units (RHUs) across the United States. Although often associated with the most serious misconduct, RHUs are frequently used for a wide range of disciplinary and administrative reasons, and up to 40% of incarcerated individuals will spend time in these settings. Characterized by heightened security, limited human interaction, and minimal access to programming, RHUs also shape the daily work of the staff assigned to supervise them - often with little specialized training.