If you want to stay warm, this is the mat for you. I am 6'-4" 240lb. I got the UL 9 LW. It is lightweight (30 oz) and roomy enough so I don't feel like I'm sleeping on a inflated plank. I used it in the Sierra's with a temp of -5 and was warm and toasty. Its pricey, but worth every penny, after a long day on the trail treat yourself.
This review was written in the old system and had content requirements that are different than reviews written today.