Would've given 5 stars but I've not had the mat long enough to see if the stitching is going to stay put. Otherwise, there are so many uses for this and the price is right. In a hammock, it can be used w/ an SPE to keep your backside warm down into the mid 30's. Beyond that, you'll need to get creative.
Bottom line, excellent water/cold barrier for any activity and very comfortable.
This review was written in the old system and had content requirements that are different than reviews written today.