Reid, I'm sorry to hear that you've had such a rough time with Covid, and about the loss of your friend; so young.
I can't believe people are changing mattresses after 7 to 9 years. Mine is in perfect shape still after 20 years. I turn and flip twice a year, have a good protector which I do replace regularly, and I'm not a heavy person. I guess new mattresses, you don't turn them etc. Should I be embarrassed to have such an old mattress?!