I've had this mattress for 1 year. Was told -and also read- it needs time to "break in" and also as mainly a back sleeper, I needed a firm mattress. It is so stiff and uncomfortable that I wake up in pain after a night of tossing and turning. I fear I will now have to buy something else and be out all the $ I paid for it. Do yourself a favor and get a mattress you can return, at no cost, after 6+ months of trying it out.