The PO gave us the memory foam topper they had used. We spent a couple of nights on it and the wife didn't like it at all. She tried the fold out couch with a foam mattress pad and liked that better. We took the memory foam off the bed, slept on the original mattress and now momma's happy. So we just put the memory foam in the garage for the next owner if we decide to upgrade.
Me? I'm happy either way, I can sleep on the ground, hammock or pillow top mattress. To each his own.