A polysomnography technologist plays an important role in the diagnosis and treatment of patients with sleep disorders. Another name for this role is sleep technologist. Your duties and responsibilities as a polysomnography technologist include following the orders of a physician to conduct sleep studies for patients. You complete your task using a polysomnograph, which uses electrodes to convert the body’s electrical impulses into a graph. A sleep specialist then interprets the graphs to provide a diagnosis. You also monitor the patient as they sleep, particularly if they have other health issues. As a sleep technologist, you may carry out work in a sleep center, a laboratory, an academic or industry setting, a patient’s home, or any other setting as directed by the sleep specialist.