I can sleep on anything, this is not an indictment regarding the mattress. Tempurpedic sells it with an automatic adjustable mechanism, like a hospital bed.
We bought this king size bed new in 2006 for lots of money. It has two electric motors that move the bed up and down (one for each side). In 2007 both adjustment motors went bad. Replaced motors under warranty.
Now in 2010 another motor failed. Replaced at my cost. These mattresses are heavy. I don't think the motors can handle the weight, yet they keep sending them out.
You won't be happy.
I'm not. $177 each time the motor goes out, and I expect it will every two years.
Review about: Tempurpedic Mattress.