Insomnia, and Other Disorders of Sleep is an 1885 medical treatise by Henry Munson Lyman (1835-1904), the American physician and Chicago professor who served as professor of nervous and mental diseases at Rush Medical College. The book is one of the earliest English-language monographs devoted to sleep medicine as a clinical subject and surveys what was then known of the physiology of sleep, the classification of sleep disorders, and the medical treatment of insomnia, somnambulism, nightmares, and narcolepsy-like conditions. Lyman draws on continental neurological writing and on his own Chicago clinical practice. The book was widely read by late nineteenth-century American physicians and is a primary source for the early history of clinical sleep medicine before the polysomnographic era of the twentieth century. Free PDF download available on BDeBooks.