Both of us were tired for different reasons. I discovered after going to bed that it doesn't take long for my back muscles to seize up again. While I was moderately comfortable flat on my back, trying to get up causes great pain. This is not good at all.
We did buy me a back brace on the way to Mehama from PDX, and it helps a little, but I can't wear it all the time, because it's very uncomfortable, especially with my excess fat in front. Of course, that big belly is one of the reasons my back is so stressed. More reasons to lose weight, of course.