My boyfriend and I bought this mattress for our new apartment. Prior to moving, we allowed the mattress to air out at my parents home because it needed to be opened 72 hours after it arrived or it might lose its shape. There was an odor for a few days, but it faded. The mattress itself is firm, but fits to your body perfectly. If you like a cushy mattress this one is not for you. I always thought I was the 'cushy mattress' type, but I have since found that a firm mattress gives you much more support. Both my boyfriend and I commented that the lower back pain we complained about with our old mattress was gone once we started sleeping on this one. Another plus is that you won't notice any movement made by your partner because the mattress keeps its shape, something that cushy mattresses do not.