What do you mean you won't accept that behavior? What if she is just grumpy being disturbed while she is sleeping? I think I would be grumpy too and probably bite, not just snap at somebody's nose if they woke me up with their face in my face. I know plenty of really nice people, who are not so nice if they get jarred awake.
Have you checked her hearing? It sounds like maybe she doesn't hear you coming and gets startled. If she is grumpy or easily startled, it might make things worse to keep "bothering" her. It might just be something she needs to grow out of. Being grumpy when she wakes up doesn't mean she is not/will not be a sweet dog. Also, if it happens when you try to move her, it might be worth a trip to the vet to see if there is anything that might be hurting her. My puppy George is only grumpy when he is in pain. One other thing. George isn't good at waking up, it takes him a few minutes to wake up enough to know where he is and what is going on around him and I am careful to not expect him to react or respond normally until he is fully awake and aware or his surroundings, kind of like a toddler :) This was a new thing to me because Rylie is instantly awake and functional. Quinn
