Open Question: Can you recommend a sleeping bag: light, under 30 degree rating, soft cloth liner, water repellent exterior?

If you can help me find our ideal sleeping bag, I would be so, so grateful! I'm looking for something that is under 5 lbs carrying weight, the lighter the better, for cool/cold weather, has a flannel, brushed polyester or other soft/plush inner lining, with a water repellent exterior cover, and compressible insulation. Extra points if it is rectangular in shape! Any ideas??? All brands & models considered.
Thank you, Thank you, Thank you :)
~ Jaspen

Source:
http://answers.yahoo.com/question/index?qid=20110719134927AAHHxZ3

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