I took the Foundation’s Course a few weeks ago and have experienced increasing lower back pain while sleeping, whether on my side or back. I have a very thick mattress topper and am wondering if that may be the culprit of my discomfort. Sinking hips?
When stretchlying, the mattress topper tends to fill the gap in my lower back. However, I wake up with the most pain here (I try to use a pillow under my legs too). Perhaps placing a towel in this curvature would help, like when lying on the side for individuals with narrow waist?
I've attached pictures of different pillow heights and without pillow. Image 3549 (last picture) shows curvature of spine on mattress topper.