How long does the last stage of dementia last?

As long as he is eating and maintaining his weight, he is not terminal. You are a wonderful supportive child, I wish there was someone like you for all the elders who need support.

We bring him into the living room and sit him in a chair for the day where he naps and eats his meals from a tray. Then in the evening he goes to bed. Usually sleeps about 10 hrs. I don't want him to stay in bed if he can sit in his recliner. He will get bed sores. But, he really can't do anything for himself. I hate seeing my wonderful dad like this......but, I know that he knows we love him. Even though he doesn't know who we are.

Once he is bedridden, about six months. Once he stops eating and drinking, a week or two. Loss of speech is not an end sign.