The Mondoking is the most comfortable thermarest yet, quite a bit more comfortable than the Luxury Map XL (Which I also own and will now become obsolete). The Large actually rolls up to a reasonable size and would work for car camping, short backpacking trips (strap it to the bottom of your pack), or winter backpacking trips (very warm r-value) where you would normally take extra gear for added warmth anyway. Luckily I got a crazy deal on mine but its worth every penny of its full price.
This review was written in the old system and had content requirements that are different than reviews written today.