If you're looking for something in a longer size, I've got a Mountainsmith Wisp from their brief period trying to break into the high-end market. Here's a review from Climbing magazine (mislabeled the "whisp"):
I've found it to be pretty accurate at 30-35 degrees and have pushed it into the mid- to upper-twenties if I slept in a down jacket, but I sleep pretty warm. It's just under 600g with a 1/2 zipper.
Unfortunately I was an idiot one morning in the field, dried it out draped over a bush with thorns, and ripped a number of tears in it which I repaired with K-tape. No subsequent problems, but the tape/patches are there. It's black-on-black, so it looks fine.
I'd go $95 shipped.