Sleep disorders and multiple sclerosis: a clinical and polysomnography study.

Background: Patients with multiple sclerosis (MS) report sleep disturbances (SD) and excessive daytime sleepiness (EDS) more frequently than the general population. Our objectives were to evaluate SD and EDS in MS patients and to test the reliability of subjective sleep questionnaires.

Methods: Demographic and clinical characteristics of unselected consecutive patients with MS were collected.