Katabatic Alsek short 22 degree, 850 fill-power water-resistant down, 22 oz
$350 free shipping conus currently retails for $465

I'm 5'11" and it fits me with zpacks hood but just to be conservative it should fit anyone 5'8" or smaller. clips to your sleeping pad and greatly eliminates drafts associated with quilts.

I bought this on the gearswap, the previous owner wrote:
The quilt was purchased new in January 2014 and is in perfect condition; it has only been used 2 nights. I'm selling it to fund an even warmer quilt. Included is the quilt, original stuff sack, all original cord and straps, and original cotton storage sack - everything you'd get if ordering new.

http://www.backpackinglight.com/cgi-bin/backpackinglight/xdpy/forum_thread/86987/index.html?skip_to_post=741780#741780
I have it next to a black 30 degree zpacks long wide bag in some of the photo's below.

Features
Patented Cord Clip Attachment System – Easily attaches to any sleeping pad and offers unmatched versatility, comfort and efficiency in a quilt style sleeping bag.
Can Be Used Without a Sleeping Pad – Comes with removable webbing straps to be used without attaching to a sleeping pad.
Elastic Binding Around Bottom Opening – Elastic binding around the bottom opening prevents gaps and drafts at the sleeping pad.
Differential Cut – A critical factor in quilt style bags with adjustable girth, differential cut allows for maximum loft from our premium goose down.
Continuous Baffles – With continuous baffles the down can be easily moved around in the bag as temperatures dictate for maximum versatility.
Down Filled Collar – Our overstuffed collar fits comfortably against your neck to seal this critical area from drafts.
Trapezoidal Foot Box – We have shaped our foot box for the greatest comfort, warmth and efficiency.
Overstuffed Baffles over the Foot Section – Provides extra insulation over your feet to ensure toasty toes.
Made in Colorado – We take pride in a quality product made in the USA.