I'm sorry to hear that. If you don't have one, a bed transfer rail may help you with your movements. This next video shows how it can be helpful and how to use it. It's titled 'bed mobility part 3: how to use a bed transfer rail'. The height of your bed can interfere with your ability to get into bed. The video 'Bed mobility part 1: bed height matters' can give you some practical advice. Also let your doctor know the trouble you are having if you haven't already- sometimes but not always, medication adjustments for night time can help. Physical therapy with someone who understand Parkinson's can give you individualized advice and exercises that can help.