Many people with Parkinson’s experience sleep problem called “REM sleep behavior disorder.” Research suggests that “REM sleep behavior disorder” sometimes begins even before motor symptoms are diagnosed. Person experiencing vivid dreams or hallucinations and acting out their dreams and violent nightmares may have a “REM sleep behavior disorder”
In addition most people with Parkinson’s find it difficult to sleep through the night because of rigid muscles, tremors or stiffness, not being able to roll over in bed and the frequent urge to urinate.
Sleep disturbances may also be caused by medical conditions not related to Parkinson’s. For example, sleep apnea (a disruption in breathing) can also interfere with sleep as well as anti-Parkinson medications.
Getting a good night’s sleep is essential for us all not sleeping well at night can interfere with daily life. Person with Parkinson’s may feel drowsy during the day and often fall asleep suddenly for short periods of time, similar to narcolepsy.