Originally Posted by lightsleeper

Do you know what density the foam is? There are quite a few tempurpdic knockoffs out there that are less than 4lbs. That weight foam will wear out much faster. I'm not saying buy just tempurpedic. There are other makers of good foam, but there are vastly more makers of foam that will wear out in a shorter time. Check out SleepEZ.com for some good articles about this.