Now in its second edition, Handbook of Sleep Disorders is the classic all-inclusive reference for sleep professionals around the world.  Contributed by leading authorities, this new edition continues to provide a well-organized guide to the diagnosis and treatment of the six major categories of sleep disorders-insomnia, circadian rhythm sleep disorders, narcolepsy, and parasomnias. The new edition of Handbook of Sleep Disorders is a great reference for every sleep professional, as well as any physician treating patients with sleep disorders. Supported by tables and figures throughout each disorder is covered in depth to help sleep professionals: