Yeah the cold can get you big time, especialy if you get wet from dew overnight.
But in texas during early fall, summer and spring (like 8 months of the year) this setup works great. Watch your altitude as well as that can drasticly lower temperature at night.
What I do which works well for me at least until about mid novemeber is take the hammok, bungee it up, lay down a space blanket on the hammock, and then wrap up in a super light gortex throw I have which does a semi decent job of keeping me dry. In the spring though I typicaly run a slack line, and a tarp just thrown over it, or if in in the woods and have alittle shrub cover often a simple mosquito net.
I just like it b/c Im off the ground, and after you've be stung in the face by a scorpion (not those little borwn ones) while your asleep, the ground isn't as friendly looking as it once was
