Follow-Up:
Thanks to this site I may have the answer to my Mothers problems. She has sleep apnea and has been taking Ambian. Trouble is she now believes someone is coming into her home and moving things, taking things etc. For over 1yr we have been changing locks etc. She's convinced my partner is trying to drive her crazy. She has severe memory loss, and recently fell and broke her wrist at 2a.m... What the hell is going on with this stuff?