Our mattress almost immediately developed a "mount...

Our mattress almost immediately developed a "mountain" in the middle from the body impressions. They weren't deep enough following the measurement procedure to claim but if you don't lay perfectly in "your spot" you are sleeping on a tilt. We did get a warranty claim approved for pillow top shift. But now I have to get my mattress professionally cleaned before I can get it replaced under warranty because apparently the cleanliness of a product affects its flawed construction!