How Do Restless Legs Syndrome Patients Recognize Daytime Sleepiness? -The Multiple Sleep Latency Test

INTRODUCTION Restless legs syndrome (RLS) is a disorder characterized by uncomfortable dysesthesias or paresthesias in the legs that occurs primarily while resting at night and is alleviated by movement. The prevalence of this disorder is about 10% in Europe and the United States. 1,2 One study has reported a prevalence of RLS in 7.5% of the adult Korean population. 3 About 80% of RLS patients have periodic limb movements during sleep (PLMS)