How well I know, my friend! I barely sleep, listening for cries for help from downstairs. Then I have to pick him up, get him back into bed (then usually mop up pee where goes on the floor). I keep wondering if he wouldn't be better off in a home... except that I know he wouldn't. He has periods of lucidity and near functionality... he would be miserable put away, especially during those times which he would find unbearable.