We started with the Original Hybrid Mattress and it was just a bit too firm for my wife, even after giving it most of the 100 days to have our bodies adjust.  So we upgraded to the Nova since it's got a more plush top and we both slept good on it right away. I'm sure we will learn to love it more and more, for anyone wondering how much more plush it is... I would say 10 to 15 percent softer than the original hybrid. Also the return of the other mattress was a very hassle free experience! [This review was collected as part of a promotion.]