"...They spend hundreds of dollars on this stuff that is REALLY easy to tear, rip, and poke holes in.
But then if someone comes up with an idea that costs $10 and takes a little extra time (less than 3 min. extra, if anything) and a small risk of potential mess up that you can totally prepare for, and even if it weighs less than any comparable product on the market, everyone brushes it off as 'silly.' Wow. Someone needs to sort out their priorities...."
People don't think it is going to work. Personally, for me, blowing up and tying all those balloons sound like a real PIA even if you use clips. It sounds pretty annoying the other way around. Try not to get to upset because people don't initially accept your idea.... prove us wrong.
As far as insulation goes, I think you are going to find it does not perform well in the field. On your living room floor tells you nothing about the insulative properties of a bedding. Insulation doesn't mean anything when there isn't a temperature difference (there is no heat flow to stop).
In the field heat loss occurs three ways (the three forms of heat transfer): 1. conduction, 2. convection, 3. radiation. You've suppressed conduction by putting a layer of air between you and the ground, just like all other air mats. Yours is thicker so it might be better except for convection. Your large unrestricted air chambers will be a perfect environment to circulate air underneath you. Down in air mats stops that circulation. Since down seems to add quite a bit to the insulative properties of air mats that makes me conclude that air circulation is a significant driver of heat loss.
The third driver of heat loss is radiation. Down acts as a radiation barrier too. Your system does not have any alternative radiation barriers. Regular balloons are not particularly good at reflecting radiative energy. Metallized mylar balloons (those part balloons) have better radiative properties, though I am not sure how well they would work. In general they are stronger than regular balloons, but they are not very flexible. Your underfilled regular balloons flex with the environment quite well which gives them the durability you have noted. And, although the radiative properties of mylar balloons is quite good, a radiation shield needs to be between layers (with an air gap on either side). I am not sure how much radiative benefit you would get.
Anyway, keep up the good work and don't get discouraged by us doubters!