Not that pad but perhaps this one:
http://cascadedesigns.com/therm-a-re...light/category
I have been using a Thermarest for over 35 years for alpine adventures. You would be surprised at how well they take the edge off a lumpy surface, insulate, and give support. I actually travel with one of their back pillows when traveling:
http://cascadedesigns.com/therm-a-re...ushion/product