my hubby when he was home had really bad hallucinations, there was policemen in his bed people coming through the windows, walking along the landing ,and to top it all he had a white mouse that sat on the floor beside his bed he used to fall out of bed reaching for this mouse,i even had to put some food out for it as he,d get upset because it had nothing to eat,
I suppose other people have had the same and the hallucinations seem to be part of some peoples dementia,just try to go along with it it makes it easier in the long run