Just before Christmas I got rid of my 25 year old California King Select Comfort mattress (Now called Sleep Number) because I just felt like it. The new one with all the fanciness in the controls is great, too, but the right side won't stay inflated....goes dead flat in about 7 hours. Since my wife passed away I haven't slept on that side but the dog does and she doesn't complain.
I finally decided to get it fixed. I called and got an appointment for a tech to come up from Phoenix to fix it all up like new, which it really is you know.
Also have a Queen size in the guest bedroom and a single on a fold out in the rear sunroom for overflow.
I love the way you can set it and forget it until you decide to try something different.
BTW, the air pumps on this one are so quiet that hardly hear them at all. MY grandson used to play on the old one and run the pumps because they sounded like a fire engine. He out grew that a long time ago and just bought Select Comfort of his own.