go to youtube and google Shug's videos. He's testing tarps, stoves, and hammocks in his backyard on a regular basis, in 17F and below.
I do both and I'm not here to take sides. It's simply a matter of whatever butters your popcorn. But I will second the idea of watching Shug's "Live from the Hammock" videos at least for the entertainment value if nothing else. The guy is pretty funny and you might even learn something.