The Canadian Sleep Society (CSS) / Société Canadienne du Sommeil (SCS) is a professional organization whose membership is made up of Physicians, sleep researchers, polysomnographic technicians, dentists, clinical psychologists, students/trainees, and other certified allied health professionals (e.g., Registered Nurses, Social Workers, Occupational Therapists, Recreational Therapists, RRTs, RCPTs, etc...).