Restless legs syndrome is common among female patients with fibromyalgia.

Background: The prevalence of restless legs syndrome (RLS) among the general population is 2-15%, and with fibromyalgia syndrome (FMS) 2%. Both RLS and FMS are more common among women. The aim of our study was to evaluate the prevalence of RLS in a group of female patients diagnosed with FMS and to compare the occurrence of symptoms of daytime sleepiness and experienced sleep disorders between fibromyalgia patients with or without RLS.