It's good to hear you have better nights thanks to the bed. Painful knees are terrible. I also sleep better on the floor, I do believe it's better for the spine but the cold and draft are a huge problem to me.

A few weeks ago, two people in a row (among them was one daughters) said they thought I would die soon. Well, I am still around, although it seems I am running out of lives.
Today I went out with a friend, and I gave him the shock of his life as I collapsed due to pain (I was just in time to lay down on the floor).
I wish you all the best, restful nights and a warm hug .