My wife and I have to get a new mattress as ours is getting old. My problem is shopping for and finding the best mattress. I know a fair amount about mattresses from various websites and reviews, but the trouble is I don’t believe you can trust a lot of the reviews that are out there. So here’s the situation. We prefer a traditional innerspring mattress over a memory foam or air mattress. We have slept on several memory foam mattresses and my wife swears they are too hot. I don’t think she will ever change her mind on this and I even tend to agree. I know the air mattresses get better overall reviews but with pump failures, noise and bad air chambers being the main failure complaints. We THINK we prefer an innerspring pillow top, but I also know that as beds have grown in size/height over time, the amount of layering has increased dramatically. Mattress manufacturers use all types of cheap foams and materials to build up layers over the uncomfortable innersprings to make them appealing – especially when you test them in the showroom. The one thing that I have gathered is that ALL pillow tops fail leaving ruts, sags or troughs where you sleep. That is our current problem with our pillow top mattress. So I am torn…should I buy a mid-level innerspring that I replace every 2-4 years or get one where I can add the pillowtop….or do I consider another approach altogether. On a side note, I have always loved the Heavenly Beds at Westin, but the ones you buy in retail stores do not appear to be the same as those found in the hotels. On a recent stay at a Westin resort, I noted the Starwood Simmons has a zippable pillow top leaving me to believe that’s how the hotel chain can keep them comfortable – by changing the pillow top as they age. I noticed that the retail variety has a fixed pillow top making it impossible to change thus insuring that you are back in the store purchasing a new $3,000 mattress in just a few years. Yesterday, we visited a Mattressfirm store and found one we thought we liked (Stearns and Foster), but the online reviews for the entire brand were horrible (ruts and sags). Now I am back at square one. Any suggestions? My budget is up to $4,000 or so.