Sleep disturbances

Nighttime sleep problems (NSP) and daytime sleepiness (DS) are important nonmotor symptoms of Parkinson’s disease. In PD, NSP mainly concern problems with maintaining sleep, whereas difficulties with falling asleep are generally not different compared to elderly without PD. DS, described as inappropriate and  undesirable sleepiness during waking hours, may occur in elderly, but is much more frequent in PD patients. The SCOPA-SLEEP is a reliable and valid patient-completed instrument for assessing nighttime sleep (5 items) and daytime sleepiness (6 items) in patients with Parkinson disease.