I know that the message works because when I'm a weekend alone with the cats I train them not to wake me during the night by just ignoring them. But the Big SkinCat that lives with me is a night walker anyway, gets up and eats bananas, feeds the cats, doesn't have a sound sleep, so whenever the cats try to wake him for a snack they succeed. He curses and then gets up and feeds them. This is why we have the most spoiled cats of all