I have a brand new, never inflated Therm-a-rest NeoAir size large that comes with the NeoAir stuff sack (was an additional $14.95).
From Therm-a-rest: 19oz, 25"x77" inflated, 2.5" thick. Packs down to about 10"x4.5".
I bought this to use with my BMBH then ended up using something else instead.
$125 shipped to the continental US.