Storm will give me love bites to try to wake me up in the morning. I used to think that it was because he was hungry but this isn't always the case. Sometimes after he's gotten me up he'll then decide to go back to sleep. He'll also nip me sometimes to get attention. He usually does this when I've been on the computer for a long time. My RB Pepper used to nip me after I would pet him. I've heard that some cats will do this if they are over stimulated.