We bought the Black series (king size), supposedly Top of the Line for $2500. After less than 3 months, there were two troughs in the mattress. Simmons states that up to a 2" dip (with no one on the mattress) is acceptable. It cannot be slept on with that much of a dip. We are not sleeping at all, wake up achy all over. My wife and I are both in good shape and definitely not overweight. We wrote letters to Simmons but got no where with it. I want to throw it to the curb!

Does anyone have any suggestions?