Remember a thread a while ago about a Sleep Number Mattress and it had some good feedback. have an opportunity to get one of these at a great price, but cant find out too much info on them. http://www.therapedic.com/products_5.html I have checked a bunch of places to see if I can take one for a test drive, but no one seems to carry them...Thought I would check here... Also considering this serta http://www.samsclub.com/shopping/navigate.do?dest=5&item=367767&pCatg=8381 Looking to stay under $1000. Any alternative suggestions or feedback would be appreciated.