Any feedback from short drivers?

I am almost 5' tall and am very comfortable in my 2010. After my 5' 10" husband drives it (and he's comfortable), switching the mirrors and seat back is quick and easy.

 

My wife and I had a chance to sit in a 2010 Prius this weekend. We liked the interior room of the Prius, especially the available space for backseat passengers. However, my wife had a slight issue with the front head rests. She is only about 5' 1 or so, and found that the headrest (angled forward) was a little uncomfortable for her neck. She likes to sit straight up and the back of her head ends up against the headrest.

Does anyone know if the head rest angle can be adjusted? I didn't think to try adjusting the angle while we were in the car.

thanks!