My dad, 77, does not sleep well at night. Over the past year, wakes up hitting my mom, or sees people in the closet. We think that was caused from different meds for relief of pain. There are times he may get up a dozen times to get a drink or use the bathroom, but then mom will find him in the other bedroom looking for something. He tends to go to sleep, with the help of xanax, but will does not stay asleep. He can go into the living room sit in his spot and nap great. My mom believes he could walk out of the house during his confused moments. During game the day, he does not ever seem confused. He would easily nap off and on all day if we were to let him. I'm wondering if this could be sundowner syndrome, and if so, would that mean he has dementia or Alzheimers.