Hello @wpshooter. Very vivid dreams can be caused by many things, sometimes a particular type of medicine (especially heart/blood pressure meds that are taken late in the day) can cause very vivid dreams. Also some pain meds that are taken at bedtime or later in the evening can do the same thing. Individuals with Parkinson's also have vivid dreams. The worst problem with these vivid dreams is that you wake up feeling exhausted because you have been so busy during the night with your dreams. You might consider consulting with a sleep specialist to see if a sleep study might be helpful. I wish you well as you seek out answers to this troubling sleep disorder. Best wishes and keep in touch with us as you get more information. Teresa