Nighttime sleep and daytime functioning (sleepiness and fatigue) in well-defined chronic rheumatic diseases Nighttime sleep and daytime functioning (sleepiness and fatigue) in well-defined chronic rheumatic diseases Download Nighttime sleep and daytime functioning (sleepiness and fatigue) in less well-defined chronic rheumatic diseases with particular reference to the ‘alpha-delta NREM sleep anomaly’ Restless legs syndrome in 218 patients: associated disorders