I would recommend a landscape fabric UQ.
I made one in spring, and it has worked great as a warm weather UQ. Sew a layer of breathable ripstop on the outside, and use the landscape fabric as an inner liner. Very inexpensive and it is just the ticket down to ~60*. I never got around to the trip report with it, but I use it almost every night in my backyard, and I did use it on the NCT trip.