In reply to climb the peak:
> Non-self-inflating sleeping mats save weight and reduce packing volume by not having foam, so what's the point in self-inflating camping mats as opposed to ones that take only a few minutes to inflate?
I'm guessing that one advantage is that you don't have to fill it with moisture from your breath on each inflation? However, to my mind, the big question is...
> a mattress that inflates in seconds, and deflates in a flash
... which is faster, seconds or a flash?