Basically I have tried a few things over the years to sleep on. From the old rubber backed fabric lilos of my youth through closed cell foam mats of various sizes (right down to torso shaped custom CCF mat to reduce weight) and the ubiquitous thermarest types used by backpackers and DofE groups. We have been using simple air mattresses of late purely for the increased comfort (with CCF on top in colder weather). This is all not very satisfactory so I am looking for alternatives. I would really love to get a nice 9cm exped down mat and live the life of camping luxury but as always there is a cost issue (my partner, well she disagrees and thinks we should spend hundreds on a downmat). Basically we need a double width and a single width alternative to an air bed for comfort (and warmth ideally). I doubt downmats come in double widths. We want something thicker than a thermarest but with the performance of them or better. All camping out of the back of a car (if solution is light enough perhaps cycle touring too). Any suggestions??