In reply to sean1:
I have an Exped DM UL 7 that has been used about three weeks without problems - it does seem to attract grease though. The pump bag (snozzle?) is handy, though it did burst at the seams once, quickly fixed with glue, no probs. The mat itself is very comfortable, quite high off the ground though and may not fit all of the one-person, narrow tents, as it's quite wide at the ends compared to the neo. I have also used the winter, silverized, neo air mat (xtherm?), and find that to be just as good.
Funny thing, the neo 'noise' does not bother me, I don't think it's an issue, but the one time I used the Exped mat in a campsite, I noticed it was very noisy moving around on the ground sheet of our Hilleberg tent.
The pump bag on the neo, doubles as the mat's stuff sack, is not as good; perhaps I haven't figured it out yet but I find it frustrating to use. Exped pump bag is very efficient.
There have been reports of Exped QC problems but every one I read about was replaced. I think the neo may have been manufactured in Ireland. Both seem expensive.
If I did it again, I would buy the Thermarest winter neo air one, and an exped synthetic mat or equivalent, ultralight, for summer. Silvering would help if the mat burst, I imagine.
H T H, Jon.