When I first bought the mattress it was very firm. After only 2.5 years it sags in the middle. I sleep alone and weigh 127 pounds. I pull myself over to the side of the mattress to get up. Filed a complaint with Mattress Firm, after paying $25, someone came to inspect it and the report showed that the indention was only one inch, the warranty is for 1.5". So I am stuck with an over $2000 mattress, that is going to hurt my back. Furious. Don't buy this mattress.