You really hate it. This reply comes about 5 year late so I trust you have figured out what you needed to do, but this is for the next person googling the same thing. You should not have to get used to a mattress, the right mattress will feel like heaven the very first night. But mattress companies give you 90 days hoping that you'll invest weeks into a bed and end up keeping it because it's "good enough". Tempur pedics range from ultra cushiony and soft to pretty darn firm. You cannot tell by jabbing it with your fingers because they all have the tempur material on top. You need to spend a night on one, under the covers because the way you sleep in life is probably not lying flat on your back all night long. But if you toss and turn and can't get comfortable after a night---send it back and try another one. Think about it----if you stick something in your mouth you hate the taste of, do you have it for dinner every night for a month just to make SURE you hate it, and won't get used it it? You're body KNOWS what it likes. I had a tempur-pedic for 8 years that I absolutely was in love with, but it started to degrade and split. Probably because I bought it used and it didn't ever have a cover on it. At any rate about 3 months ago I could no longer deny the fact that it had died and gone to visco elsatic heaven without me. Problem was, I didn't know which one it was. I measured the width (they come in different widths) contacted tempur-pedic, told them what year I bought it and they told me they didn't make the same mattresses they did 8 years ago but it was probably closest to a Countour Signature, so I went to sit and sleep and tried that. I loved it! Took it home, spent the night on it and HATED IT. I knew the first hour under the covers in the dark that this was not my mattress. Then I tried the Rhapsody---OMG that was worse. That's like sleeping on a cushy ironing board. If you return a mattress to sit and sleep you have to pay a $250 restocking fee to get another, but what's $250 against 20 years of sleep? I started treating sit and sleep like a library---borrowing mattresses. Finally found the same mattress I had for 8 years on Craig's List for $300 and bought it. Perfection. I don't think tempur-pedics get softer over time. They say they do, they say it can take a month for the cells to open up but on the two I had which I didn't like, I felt no difference after a month. I am a firm believe that your body knows what it wants and don't try and reason with it. But I also believe there is a perfect tempur-pedic for everyBODY, you just have to be diligent and keep trying them and when you find it, OMG it is worth all the effort. As far as losing the difference if you exchange it----make them give you tempur-pedic pillows, sheets, a foundation and anything else they have to make up the difference. I ended up just selling the Rhapsody on Craig's list at a deep discount (one month after I bought it) but I got karma points and I found the perfect mattress for $300 and that's how things roll sometimes. My advice---Do not sacrifice your sleep or comfort for anything or anyone. I mean it is 1/3rd of you life.