Just a little tidbit to those that are going to buy or interested in Tempurpedic Mattresses or similar type mattresses. Do yourself a favor and get a Dr's note for your "bad back" and you need it for the pain. It will help you with NO TAX. I've purchased 3 mattresses in the past 8 years and the Dr.'s note does the trick. Additionally I believe it works with exercise equipment. You know, doc says you need an elliptical because of your "bad back." Removes the additional money you don't have to spend.
Additionally, since Tempurpedic is price protected, there are ways to make up for cost. Such as receiving "free" Tempurpedic pillows that are like $150 per pillow, mattress covers, free deliver etc. Granted I bought 2 Tempurpedics at once, but I received 8 Tempurpedic "free pillows," 2 mattress covers, free delivery, and 5 years no interests.
Hope this helps someone that's considering purchasing a new mattress.