I got a 'Tulo' from Mattress Firm in 2019. Being a side sleeper myself, the mattress isn't overly soft, but I feel supported the full length of my body. I was on a pillowtop before, and it didn't have the even support feel to it that the Tulo does.
My only complaint, I find I need to rotate the mattress frequently, like whenever the sheets are changed. It seems to take a set to my routine that doesn't go fully away, unless I switch sides for awhile. Make sense?
It has a 10 yr warranty on it.
I'd buy another, especially if it were on sale.
Mattress Firm Linky