Thinking of you both. I can relate to the idea of demons at night and know it is terrifying - it explains why I am often up working/blogging/xmarking etc hours after the rest of the family have gone to bed. In my case it is related to my varying sense of personal security, and I know I am lucky not to have other more serious symptoms, so I feel especially concerned for your wife.

I'm sure that you're looking after her, which is what she almost certainly needs.

Thoughts and prayers, offered.
Graham.