She always sleeps with us. Sometimes she sleeps all night, sometimes she bugs us. Last night I woke up, I was sleeping on my back and had my arms at my side and she was cuddled up on my shoulder. I thought it was so sweet, she's not much of a cuddler really. Well, we were laying there and then all of a sudden she bit me on the neck! Pretty hard, but it didn't break the skin. WHAT was the about and how do I make her not do it?