Became misshapen after a few months

The pillowtop foam became compressed, so we were each lying in a hole, with a ridge between the two of you. It's too soft and gave us backaches. Additionally the whole mattress began to arc down on one side, apparently unable to handle my husband's 230 pounds. This all took 5-6 months, by which time all bets were off with the Macy's guarantee. Simmons' warranty is worthless. We have actually turned it upside down and are sleeping on it that way, because we can't afford another mattress so soon. Now I have the hill on the side, but it's recovering with less weight, and my husband is sleeping more in the middle. Our backs are better, but come on, this is outrageous. Never again, Macy's and Simmons!