We just bought a new bed and had it delivered today. The old one (Comfort Solutions by King Koil, Arlington Plush) got sent away as it had become unusable. As I was filing the paperwork I looked up the old one and was shocked to find out that we had purchased it only five years ago and we have been complaining to each other about this one for over a year! I found myself not looking forward to laying down in this bed at night. Would get up each morning and there were two big divots where each of us lay. Very little recovery during the non occupied times. Within minutes of turning onto my side I feel like I'm bottoming out on something hard. Waking in the middle of the night with my hips hurting. I have noticed the difference when travelling and sleeping in a nice motel bed and realizing that it is not me but this deplorable mattress. Then to confirm that we had this condition after only four years!