Does your Gordon Setter twitch and jump and even appear to be running sometimes when he is sleeping? Our Gordon, "Happy", does this and sometimes it's comical to see. The twitching and jumping is harmless. Your Gordon is just dreaming. Probably dreaming about birds, birds, and more birds. Happy even barks, lightly, in a high pitch tone. I'd love to know , if in his dreams, my husband gets the bird, or misses!