Hong I`ll be carrying a 12 v pump, you can use. I got the atom 3, 3 birth from go camping for £24.99, on offer all this week. Double airbed, not taking a sleeping bag, just an over cover that came with my sleeping bag thats furry and warm
Wrap everything together nice n tight, bin bag it and the bundle ends up being pretty small.
http://www.gooutdoors.co.uk/hi-gear-...6#descTabSect1