jason wrote a review of Therm-a-Rest Z Lite Sleeping Pad on April 10, 2012
Honestly I have only used this on one trip. I spent five nighs on the AT with this puppy. Super light, nice cushion between me and the ground. I was cold but I took too light of a sleeping bag. I roll around a lot during the night so some mornings I would wake up beside the pad, the slick sleeping bag didn't help much either. It does what it says. I would recommend it.