I don't have either...however, I did just purchase a new mattress set recently and tested both of the two in question.
For me, I'd love to have had the Tempurpedic...it was absolutely divine! Alas...the checkbook said, NO!
So...I ended up with the "Heavenly" mattress you can find in the *****Hotels and it is very yummy...it's definitely not a Tempurpedic either.
Good luck in your choice!
