Have used it a couple of times and have no problems with it.
We used to put down a decent blanket under the old mattress along with thermals and a winter rated sleeping bag and it was alright until it started going flat during the night.
Won't go back to a thin one ever again.
12/97 GEE YOU
4.5lt Gas blower. Lots of mods to come.....all in good time.
For camping, this is one of the best self inflating mattress
http://www.raysoutdoors.com.au/onlin...ecommendations
2012 GU Patrol Simpson Edition. Auto. UHF, Bull Bar, 2" lift with Koni shocks, dobinson coils. 3" stainless Steel Exhaust.