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
These are my own opinions based on wisdom earned through many wrong decisions. Your mileage may vary.