My mom is now 5 years into her dementia. She use to sleep very soundly, but within the past 3 months her sleep patterns have changed substantially. Her doctors agreed to increase Remeron at night for her anxiety/depression. However Remeron has had the opposite affect. She would get very mean, and was wide awake for 24 hours and then crash. I discontinued the Remeron at nighttime. She also takes Aricept and Cymbalta. She talks non-stop with the repeats and talks alot about her life as a child and more into the dark side (death). I am open for any suggestions. I must confess the constant talking really effects me more than it does her (maybe, not sure).