Odd you should ask this. Earlier this year I started having pretty bad pain in my elbows. It didn’t hurt to bend them, but it was getting more and more painful to unbend them – open my arms out. It was getting to the point of being debilitating.
One day it dawned on me. I’d started putting my hands together and putting them between my knees when sleeping on my left (favored) side. I stopped doing that, and the pain went away.
As far as I know I now sleep in a loose fetal position most of the time. Head bent, knees bent and arms in a praying position.
Makes me wonder, has anyone ever done a comparison between the similarity of the fetal position and ‘on your knees in prayer’ position?