Thanks, Syb. The UQ is actually part of the hammock, but it took some experimenting to get it the right shape.
Diva, large saftey pins are a good thing to start with. Attach the centers of the two sides first, then figure out where you need to put in darts as you do the rest. The weight of the quilt will be your foe. It will tend to drag down the edges of the hammock. It helps to use tie-outs on each side (left shoulder and right ankle). You can also tie the edges up to a structural ridgeline with shock cord - use a slippery half-hitch and adjust as necessary. It won't be pretty, but you'll learn a lot and might stay warm. Good luck!