After about 15 years of sleeping on our Simmons Beauty Rest extra firm queen size mattress and box springs my wife and I are ready for a new set. We realize there are many options now which were not available at the time of the original purchase so we would very much appreciate any ideas and/or recommendations of choices people have made in the past several years for new bedding with which they are happy-or perhaps discontent. There is an abundance of stores which sell a variety of mattress options so we would be grateful for some advice on which brands to buy (or not to buy) as well as the better stores to visit. It is a major purchase and we would like to make sure as possible we are buying a quality product from a reputable store. Many thanks for your guidance.