So, first two nights on the Neo Air Trekker size regular.
It was no hassle to inflate and as comfortable as a synmat. It is very slightly narrower but I didn't really notice this. Being longer it made my pillow arrangement much easier which I liked.
It was warm enough and didn't squeak but then we don't really notice the Exped squeak either.
Slightly pricier than the Exped and as practical, if not more so, so now I wait to see how robust it proves to be.
Not sure about the bright green colour though...