Is this mattress purchase a good deal?

I am looking into buying a new interspring mattress I had been planning on buying a new king size bed with a price range between 800-1000. I think that the beds are decent at this range. Well, this one chain in town has returned mattresses from customers who brought them back withing the 60 day time period. They tell me that these mattresses are not returned for defects and that they have been tested at their warehouse, and that some people return the simply because they did not like the feel after sleeping on them. They are offering a King size Sealy Postropedic Plush Rothchild that has an original price of $2700 for $700 + $200 for box springs no warranty though. I can’t find much info on the “Rothchild” and Im not sure how much to worry about the warranty. Opinions?