The girl's facial expressions are so limited that it's really difficult to have her actually do things in the narrative. In the second panel, her eyes are closed just because she's blinking. The other shots of her asleep are taken from the very end of the movie (curiously, just BEFORE the final scene with Sinbad, which means that at that point the book is reading itself), when she turns her head to go to asleep. It's the most her body moves in the entire movie.