Honestly... cats are different than dogs. They tend to be more of loners than dogs. Being that way, I think that they tend to like to pass on in peace. As some others have said, if he needs you, he will wait for you. If not, then he'll do it in his own time, his own way. Your daughter is more important and from the sounds of it, she needs you more than he does. If he just wants to sleep, let him be and go about the things you need to get done. I'm sorry you're having to go through this.