Last night I was with my puppy im my ved and we bith like the same side of the bed. And I normaly take that side. Well My puppy America went over on my side and layed on my pillow. So I moved over to let her lay on it except when I moved over she got up and moved down and took that side! and if i decised to move her over she would growl at me so I had to let her have that side.