I'm a fan of mosquito nets, though didn't discover them till late in life. The rectangular one to go over a full size bed, from REI, is the one I use, and usually set it up under a minimal tarp. Mosquito nets don't merely keep the bugs off they keep them away from my ears far enough that the whining buzz doesn't keep me awake. Very light and versatile to pack, and when rigged sideways it covered three of us sleeping side by side with plenty of room.
I hang one end of the net above my head and let the rest drape down over my sleeping bag with my bod in it. If it were a hot night I'd have to tie up the foot end so I could sleep on top of my bag, but haven't needed that so far. Tied up only above the head end it makes a triangular space plenty big enough for head and shoulders. I tie the top center to a ridge line cord and the corners on that end of the net to the edges of the tarp on each side with enough tension and height to keep it well above my head.
