Sleep, Movement Disorders, and Dopamine will be divided into five parts, each detailing a unique theme: (I) physiology of the dopaminergic system, (II) role of DA in PLMD and RLS, (III) DA hypofunction as a contributor to RBD, (IV) imaging studies in DA deficient states, and finally (V) the downside of DA treatment underlying the fine balance between sleep and wakefulness. Each part will be divided into several chapters further exploring and reviewing recent data as detailed in the table of contents.