Well to me it made sense. 1. It's extremely cheap. 2. It works just as well as a sleeping bag in terms of keeping me warm. 3. I'll be starting my tour in the southwest US so if I ever feel the sun is too much this also doubles as sun protection. I doubt anyone that is feeling heat exhaustion is going to climb into their sleeping bag. 4. It's waterproof. I can use it as a tarp. Since it's water proof it is also easy to clean. Rather than worrying about a sleeping bag collecting dirt and smell I can just hose this off every once in a while.

It's a large 5'X7' so it is easy to wrap yourself in. That's all I need. It doesn't have to feel like silk chocolate on my skin. To me, it is a very economical tool to use on a tour. I'm sure there are other uses for it too. It reflects radar and is a great light reflector in case of extreme emergencies. No wonder they keep these things in survival kits. Matt