Yes, thanks for the link.
Only extensive user reviews will ssuggest if the idea is workable but that's the first innovation I've seen in sleeping pads in at least a decade. None of the others survived the test of the marketplace but that does not necessarily mean they were poor products.
There have been many inflatable pads designed to couple with or slip inside sleeping bags, like a quilt, so the loft was always on top. I don't htink any of those products are still on the market.
ONe of the more interesting products I remember (but never got around to buying because I didn't need a new sleeping pad at the time) was designed specifically for side sleepers like me. It had three or four sections so one could adjust the height of the hip area separately from the sides and head.
I wish these guys luck.
If I was still doing ultrlight backpacking, I'd definitely try one of these things.. But I only do supported touring so I'm happy to drag along the thickest air mattress I want to.