Much too soft for good alignment

I did not order this soft mattress.It was a replacement for the original purchase as the delivery man sliced the pillowtop.When I went back to the Brick to complain it was too soft and not what I ordered their response was it is the 2020 model with no changes and you have already switched mattresses once.That was because they cut the pillowtop in two places.Also warranty not valid as I removed a tag on the mattress that gave me a paper cut.If you stand on the mattress you would almost sink to the floor.Forget about sitting on it to put your socks on.Also is starting to say after 5 months.Stay away from Beautyrest Hotel 4 from Simmons.