Despite it's shorter length and reduced thickness compared with other inflatable mats I find the Wee Airic comfortable enough for most situations. However I sometimes take a foam mat (3/4 or full length) along as well, if the weather's Arctic or if we're not cycling too far, for extra comfort.
Like thomthumb [edit] DIDN'T [/edit]
suggest a hammock is a nice touch if you've got the space spare in your pack, especially if the ground's rocky or uneven. There's nothing like swaying in the night-time breeze as you drift off to sleep. It's better than sliding down a hill in your sleeping bag at a dischordant angle to your sleeping mat!

And that's another thing, if you haven't got a hammock then look for somewher flat to bivvy down, lots of people seem to think that they'll get a good nights sleep on a 1-in-4 incline if they sleep with their head pointing upwards. They just end up in a heap at the bottom of the hill, and then complain that sleeping out is uncomfortable.
BTW, don't forget to invest in your morning coffee making facilities. Most important!