Very comfortable mattress in just about any sleeping position. It was easy to set up, other than the fact that it is very heavy and you need a 2nd person to move it around. My only critique would be to sew in some sturdy handles on the sides to make it easier to move.
I have had my Casper for almost a month. I’m still getting use to it. I thought my back would be better instantly however I’m still looking forward to that day.