Maybe, but IMO, I really don't think the/a more expensive blue pad is going to give you better results than the cheap one - my guess is that it's still going to want to spring back to its flat form. After time, perhaps the material can be retrained to hold the form you want it to...

You'll have much better luck with the windshield screen.
Insulation may be hit or miss, depending on the quality of the screen, but it should hold a cozy form well enough.

I'll reiterate my Insulbright suggestion - it's light, washable and because it's a cloth-like material, will conform to any shape you want it to when it's packed.