My mom has been sleeping for 4-5 hours at a time. I had to wake her today so she could eat, and soon after she finishes eating, she fell right back into a deep sleep. She just started this within the last week. She was also prescribed Zyprexa 10mg, just recently (friday), for being down right mean & agitated, but the sleeping for hours began before she started taking Zyprexa. I'm confused to what is going on! Things are happening all of a sudden! Things are getting out of control with her! She went from being a half way decent person to be around to a mad, furious, frantic, distraught, hysterical, & a very agitated person just over night!.... Someone please tell me that her sleeping is just a part of her Dementia and nothing more, along with the sudden behavior change, because she is driving me insane, and my stress level is pretty high at this point... Too, I can't lie, when she does sleep, it's like when I had my small children, and when they took long naps, It was like, shewww, hells to the yeah!! I check on them sleeping and get some ME time all at the same time!!!