I'm looking at top quilts and found this sleeping bag/quilt from ZPacks.

For the temperature rating, they are pretty light (compared to other top quilts I've been looking at), and having the option to use it as a sleeping bag would be nice, especially since it costs a lot (but I'm not complaining about the price)

What do you think about having a zipper under you when using it as a sleeping bag? And is there anything obvious that would make it a bad solution for a hammock? I guess it's wider than a top quilt, and there's of course the zipper. But I'm using a sleeping bag now as top quilt and the zipper hasn't bothered me (just zipped at the foot end).

20 Degrees (-7* C)
Medium Length, Regular Width - 16.8 ounces (476 grams)
$325
I costs more than other top quilts with similar temp rating (e.g. Warbonnet Mamba), but otoh it's dual purpose and lighter.

They have a sweet-looking tarp with doors as well. This is going to get expensive!