I wanted to wait awhile to write a review so I could give an honest review of how it is wearing. I have had this mattress for 19 months! I was alittle hesitant ordering extra firm but after reading the reviews people were saying it has just the right amount of give to it I gave it a try. I do not regret it for a moment. They were absolutely right. The mattress is made well and is firm and holds it shape but has just the right amount of give that lends perfectly to your weight and movement. I have joint and back issues and this mattress has helped me get the sleep I was dreaming about. After almost two years it is still holding its shape and still feels as comfortable as the day It came. Very happy with this purchase and would buy again !