User Review: Therm-a-Rest Original Z-Lite
Used this on a 7-day trip where the weather varied between 25 degrees and ice showers/snow to 75 degrees and sunny.
Indeed when in cold weather this pad collects a lot of moisture via the egg crate cups. It is definitely a measurable amount. This egg crate construction definitely makes the pad more comfortable. Be careful in that in very cold weather it is thin enough to conduct some heat away into the ground. Definitely a three-season pad. All in all though worked well, was light, comfortable, and packed fairly small.