We adopted a 2 year old lab mix many years ago. If something would touch her, waking her from sleep, she had an automatic reaction of defense: a growl and snap as if to bite (which she never did though). Obviously she had been abused or kicked when sleeping. We quickly learned to always wake her with words, never touch. She never had the defensive reaction to being waken with sound, only touch. We loved her for 15 years, and she never 'outgrew' this defensive reaction. Maybe yours will adjust, but you might have to accommodate instead!