I got a 2 inch memory foam pad for my bed and it fixed (nearly) my problem with shoulder and hip pain.
So I am now sleeping from 3 to 4 hours sleep sessions with only two wake ups per night and 8 to 9 hours totally per night.
My AHIs are running under 5 per night and almost zeros a lot of the time.
So I am settled in for the long haul.
Thanks again for all the help.