Air sofa as crash pad supplement

An "air sofa" cost like Euro 20 and we have been testing it as a crash pad supplement with great experience. If you are going for a high ball, you can use one or two air sofas as a sandwich in between two crash pads. Actually we have tried to just have the crash pad on top and although pretty high impact, the air sofa did not collapse. Obviously, it is not good to land on as you will bounce away but for the kids it works fine spotting them carefully.