“…Sleep disturbance is a disruption or deviation from a normal sleep pattern that may include difficulty falling asleep, poor quality sleep, non-restorative sleep, numerous nightly awakenings, early morning awakening, excessive daytime sleepiness, and fatigue (12). Fatigue may be physical (physical exhaustion or reduced energy) or cognitive (problems with thinking, concentration, or memory) (13). Sleep disturbance has been reported in a number of rheumatic diseases including RA (12), and a bidirectional relationship between sleep disturbance and fatigue has been demonstrated (10).…”