Does anyone have a parent diagnosed with vascular dementia who hears a voice awaking them from their sleep?

It's possible that your dad has more than one type of dementia. My dad had a voice in his head after his surgery, but that voice was male. Voices are less likely a part of vascular dementia than other types. It would be educational to speak with the doctor about this whether or not anything can be done to help him, especially if this voice upsets him.
It was terribly upsetting when Dad heard "Herman" (that's the name we called the voice) because the voice held such authority. I hope they can help your dad.
Take care,
Carol

Than you for answering my question. I actually spoke with his PCM 2 weeks ago. She told me that she had discussed the case with a neuro psychologist that she knows very well (without a name of course) and he mentioned Levybody dementia. After researching the criteria for it, he does match the symptoms. I too am beginning to believe has a case of mixed dementia. The MID was confirmed via a CT. He can't have an MRI due to his pacemaker.
The voices do scare him, but his beliefs are quite different. He won't tell me about his past, but he has a "fire and brimstone" faith. He told me if the Devil wanted him, there was no place he could hide.
I just never know what I'm going to get each morning when I hear his feet hit the floor.
V/r,
Suzanne