I purchased a XXXX Enlightening mattress set. Six months after the purchase date the left side of the mattress started sinking at  least XXXX inches EVERY NIGHT! My wife has to reach "up a hill" every night to hug me. She has XXXX problems because the middle sinks lower than the top and foot of the bed on that side - EVERY NIGHT!!!
XXXX sent out a "bed checker." He pressed the bed in for a few seconds - took his handy ruler and proceeded to submit a report. We received a letter stating "the mattress is contouring to the shape of your body." Really - so sinking into "the panels" is to be expected? 
It is absolutely ridiculous to think that a legitimate complaint about a XXXX product could be taken so lightly. The fact that this product is impacting my wife's health  - who is a XXXX is truly worrisome. The bed was supposed to aid in increasing our well being and not in diminishing it. Every morning my wife has to pull herself out of the bed as if she is struggling from an abyss. XXXX This bed is a MENACE!!! We have more aches and pains with this new bed than we did with our 10 year old mattress. This is the worst product we have ever purchased!!! EVER!!!