When I was 24 I spent 4 months hiking and camping in CAlifornia. I had an 8x10 piece of plastic for a ground cloth and when it rained I pulled half over me. I used a piece of old shear curtain for a mosquito net. Many awful sweaty nights were spent avoiding the hordes of mosquitos on the other side of the net. I also did not carry a coat. I remeber getting a piece of blue foam and it really beat sleeping right on the ground.
Jim crazy
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These are my own opinions based on wisdom earned through many wrong decisions. Your mileage may vary.