oh my aching back...

I am at the point in pregnancy where my back is really starting to ache half way through the night. I feel like the little old lady in this picture. I already sleep with a pillow slightly under my stomach, but it is not helping so much with my back. I remember when I was pregnant with benjamin I thought it was our mattress and that it was too soft and later realized it was pregnancy. Anyway the aching has started again and I am not too excited about it.