My daughter selected this mattress after doing an exploratory search of memory foam and regular mattresses at a local store, then reading the online reviews of MANY memory foam mattresses. We learned that box springs no longer have springs; they are just a 'box' to to provide a platform for a mattress and/or raise the bed to the height desired. She was getting a new platform bed to put this mattress on. Did not experience a strong smell when it was first opened. She was looking for a mattress that would not have pressure points because of shoulder problems, but wanted a firm mattress. Has been using it for a month and loves it so far.