Hello,
First, this is
dementia with superimposed
delirium. I will not be able to tell you what type of dementia with the given information.
As such, the sleeping medications are not going to help. If anything, they are going to make the delirium worse. So, please refrain from giving them.
Other than that, make sure she is in her normal environment as much as possible. If not present, put a watch in her room. And make sure there is always light in her room.
As for the diurnal variation, I think she is sleeping more during the day. So, give it your best efforts to keep her awake in the daytime- give her activities that she is/was fond of doing during the day.
She does seem to have some component of
paranoia. She would need anti psychotics like
Quetiapine. However, I would recommend taking the medicine by a prescription of a certified
psychiatrist only.
Last but not the least- she is in delirium. She is not trying to cause you trouble. She is not listening to you because she is in delirium- in her mind and memory her husband is probably alive and since he is not around she will want to go look for him. So try to be patient with her. it might help to understand her as much as it is important that she understands you.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Saumya Mittal