This is about the silliest question y'all have probably heard all day but, on my hang this weekend I couldn't use a pillow because my chin was pretty much to my chest anyway because of how the hammock lay. I played around with sag and settled on the flattest lay I could get on the diagonal. It was somewhat flat but there was no way I could use a pillow without cranking my neck up to my chest. I assume I'm doing something wrong. What is it?