The idea behind this is excellent but the design simply doesn't work. The upper part of the topper is only a few inches thick. The lower part is about an inch thick. But the upper part is not thick enough (high enough) to elevate your upper body for any worthwhile purpose. I have GERD and have been sleeping with a wedge to elevate my upper body for the past two years. I have to be elevated AT LEAST 6 inches or it's useless and I get reflux. I loved the idea of a gradual incline going all the way from top to bottom of the bed - better for my back. Unfortunately, especially given the softness of the topper, once your body weight is on top of it, you get even less height than the 5" of the topper itself. So there is ultimately extremely little elevation of your upper body, rendering the topper useless. It's a good quality foam and comfortable if you like a soft topper but it serves no useful purpose. If you are simply looking for a regular topper, this isn't a good choice because when you make your bed, the bed appears to be slanted! That would be fine if it were actually accomplishing its purpose - but it's not. It was a big waste of money for me because it's not returnable.