not work the money, sleeps hot, loses firmness

the problem with this bed is how it breaks in. When you first get the mattress, it is a tad firm and over a few months softens up. ok, so far so good. The problem is that after a year of use, the area where you normally sleep is super soft ( you almost fall in ) and the area of the mattress not frequently used is pretty hard. Meaning, you basically have to sleep in the pit you created. If you try to sleep anywhere else, you have to fight from rolling into the pit, we bought the heated/cooled base in a king size. The heated/Cooled option is sorta cool. The heat option works great while the cool option works ok. I find that i constantly have to run the cool option because the mattress itself retains so much heat and really sleeps hot. my wife and i spent over $5,200 for the king mattress and the heat/cool base. And we have had 1 warranty claim in 3 years and are about to do another. We would like to get a few more years out of the purchase especially since we spent so much money, but might just call this mattress a loss. we will NEVER buy another yume, and are probably done with memory foam mattresses.