My son is after a blue sleeping pad/mat to match his pillow (he's 3). So I said I would look for one. So does anyone have a blue sleeping mat/pad with an R value of at least 4 kicking about they no longer use? I'm not worried about self-inflating vs inflatable and I'm not too worried about weight. An extra 200g when I'm lugging a 3 year old, his trailer, all of our stuff, and who knows how many of his trains won't matter too much. But as long as it's not like 2kg on its own is fine.

Is an R of 3.5 close enough? I might have a blue Alpkit Dirtbag available.