Hey, Greentea, welcome to Pet Talk! Sounds like someone is NOT a morning doggie. Does she not respond if you call her name when you go to wake her? Where is she sleeping that you have to get her? If not in a crate, I'd start crate training her. If she's in a crate, it may be that she's "defending" her room. But, I agree, it needs to stop.
Have you tried tempting her with a little treat to come out of the bed and go outside? Lots of praise when she does? Does she have any other times when she's bitey like that, especially when you pick her up? If yes, you might want to have her checked for sores and bone problems. Could be pain.
If the treats don't do the job, try using a very growly noooooooooo and just hold her and be still until she stops. No ouching, no other talk or movement until she stops doing it. In fact, you might turn your head away and "ignore" her. In the wild, that is one of the first responses to "ridiculous" behavior--ignoring it until it stops, then, positive reinforcement for the good behavior.
Keep us posted as to how she's doing. That is not good behavior even if one is sleepy!
Christi
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