Figure 3: Approach to the management of sleep disturbance in Parkinson’s disease BoNT = botulinum neurotoxin, CPAP = continuous positive airway pressure, EDS = excessive daytime sleepiness, OSA = obstructive sleep apnea, RLS = restless legs syndrome, REM = rapid eye movement, RBD = rapid eye movement sleep behavior disorder, SNRI = serotonin–norepinephrine reuptake inhibitor, SSRI = selective serotonin reuptake inhibitors, TCA = tricyclic antidepressants