I'm a lifetime tent camper wanting to try out a night or two under a tarp for the first time, but I could use some reassurance about it. I'm planning a solo trip around labor day to the Chisos Mountains in Big Bend national park, and given the possible need to carry a lot of water with me, I'm thinking about trying out a tarp to save weight. The only problem: I AM SCARED! I know the Chisos have plenty of rattlesnakes and scorpions and are said to have plenty of black bear and a number of mountain lions. I've camped enough to know that just cause they are there does not mean there will be a problem or that you'll even see them, but for some reason, the idea of camping alone without the mental-protection of a tent scares me.
Regardless, I'd like to try. Can someone give me some reassurance that this isn't a suicide mission? Also, what all do I need? I'm planning to take a 35 degree bag, ground pad, 10×8 overhead tarp and a smaller ground tarp (no bivy). Will that do the trick?

