I've spent a few of those nights myself and can relate! Personal style will dictate, of course, and this minimal set up will not be a match for everyone.
If it were me, and i was expecting those conditions, I would have a double layer hammock, which would solve the back biting if you have no UQ, and I would probably have my silk sleeping sheet for my legs. Even when I lived in muggy/buggy Virginia, there was a point in the middle of the night when I needed some insulation, although not much.
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