After much searching – mostly during class, ra ra – I think that this is the best bag for me:
WHO: The REI Igneo
Minimum Safe Temperature: 19*F [less than the minimum required]
Comfort Temp: 30*F [spot on for my needs]
Weight: 1 lb. 13 oz [really light]
Material: Ripstop Nylon
Fill: 700-fill duck down [longest-lasting fill, at a good quality]
Compressed size: 5.2 liters [%$@$ tiny as far as these things go]
WHEN: As soon as I want to spend $299 on a fuckmothering bit o’ blanket.
WHERE: Teh Amazons. Derr.