Sleep Number X-12. air conditioned, heated, adjustable firmness, can raise the head and feet, and of course several different full body massage features. Voice activation is pretty nifty too.

Ive had my twin sleep number bed since 2006~. Only things that have happened are 99.99% user error. I dropped a hot iron on the top cover and it started to melt it. The old technology pumps were really loud (no longer used) and the lcd screen on the remote to inflate/deflate the old style air chamber burned out (but still pumps) from a storm.

Ive owned my X-12 for about 4 years now. Downsides? Pricey pricey. Pain in the ass to have to assemble (finalize your plan on where you want it before purchasing), there was a flaw in the foam wall and it led to me sliding out of bed. Sleep Number mailed and replaced this free of charge, the ac/heat unit was a little temperamental on one side. I went through 3 of them before we got it right. No issues with an air chamber popping or loosing its feel ect over several years.