We bought a tempur-pedic mattress and pillows and after one week made the furniture co. come and pick it up. If you have allergy problems I can't see how you could sleep on it. We were told the smell would go away and that most people don't notice it but...
Our son also had one and he said after 3 years it had their body molded into and was hard to sleep on. Lots of people like them though.