Mattresses and backache
While I remain suspicious of the current quality of my bed's mattress, my experimentation in recent weeks suggests that it is sleeping on my front that causes my lower back to ache. I sometimes do it anyway because it feels as if it will be the most comfortable next position: in repositioning I am often following a specific urge toward the next. Still, I am now trying to reduce my time on my front; it's cheaper than risking a new mattress.