I bought a different brand a week and a half ago at Wayfair.  It was a mild comfort mattress and it ended up being to soft. 
What was awesome is they came 2 days later and picked up the one we didn’t want plus I ordered a firm mattress and that came in 2 days and my husband loves it.
He is not sinking down like the other mattress.
Another added plus was free hauling away  for our original old mattress.
I’m very happy with Wayfair.