Sleep disorders are defined as the changes in sleeping patterns or habits that can negatively affect health. This book on sleep disorders aims to shed light on some of the unexplored aspects of this disorder and the recent researches in this field. It aims to provide its readers a wide spectrum of topics that are of utmost importance to sleep disorders. The causes of the disorder are elucidated so that the disorder could be understood in a better manner. This book also lays emphasis on the various techniques of treatment like different somatic treatment along with medicines. This book is an essential guide for both academicians, clinicians and those who wish to pursue this discipline further.