My Dad has had to use 4L oxygen since a hospitalization for pneumonia last September. He was diagnosed with Alzheimer's March 2014 when he started hallucinating and having anxiety attacks with aggression. He has slept most of the time since 2013. He's at w VA home where the staff monitors him closely and gets him up as much as they can. He's eating fine, but I'm concerned about the pneumonia and sleeping. He doesn't interact with his dog or me much anymore either. He's also developed incontinence.