I had a mat bubble at one end - a cheap Wehnke that got wrecked by an impatient teenage daughter trying to roll it too quick. I wrote this off to experience, but if it had been an expensive mat I would have been well peed off!
Aug 2011 - Brighouse Bay
Aug 2011 - Wild Rose Park
Sep 2011 - UKCS Meet Skipton
April 2012 - Charity Farm
May 2012 - Primrose Valley (Caravan)
July 2012 - Nantcols
I had the same problem with a cheap one - that was replaced by the company so I would expect thermarest to do the same. There is nothing else that can be done other than get a new one so go for it.
I think I am about to contact alpkit again - my airic deflated this summer despite being correctly stored. I just need to check for leaks first..
------------- pork
Remember a good wife always helps her husband with the dishes.