This chapter reviews clinical disorders in which the daily pattern of food intake is dysregulated such that eating occurs at night during sleep period. It presents the characteristics, diagnosis, demographics, consequences, physiology and treatment of sleep-related eating disorders. The chapter also provides brief reference to differential diagnosis with night-eating syndrome (NES). It also describes the associations of SRED with other disorders, including sleep disorders, mood disorders and eating disorders. Polysomnographic (PSG) studies of patients with SRED demonstrate high prevalence of concurrent sleep disorders. Treatments that are employed to manage daytime eating disorders may be beneficial in controlling night-time eating episodes. Pharmacologic treatments for SRED (and NES) are either derived from effective therapeutics in related disorders (e.g. bulimia nervosa or somnambulism) or those useful in disorders which are commonly comorbid with nocturnal eating disorders (e.g. restless legs syndrome (RLS)).