Lafuma Extreme 1000 +30 Sleeping Bag Long for $54.93 at REI.com

You should change it to Lafuma 1000, not 100.

I own this bag and have used it on two trips for 4 nights total. Originally purchased it because it was super light for non-down (2lbs 4oz), very affordable (was $70 at the time), and packed down to a ridiculously small size (7x13). It is extremely roomy, gives lots of room for your feet and legs to move around, and has a bunch of draw strings to fit yourself.

The problems with this bag:
-Many people say that it tears easily and gets holes after it's wet. I haven't gotten mine wet (a little moisture from dew that entered tent), but I can easily see it tearing since the material seems thin.
-Zipper gets stuck sometimes when a piece of the bag goes into the zip. This isn't a big issue and can happen with a lot of light bags.
-Isn't a 30F bag. Lafuma is usually pretty generous with their ratings. This is solid for 40F, maybe you will need an extra layer for 30F.

HOWEVER:
-It's super light for a non-down 30F bag.
-Compresses down ridiculously. Will have lots of room in your pack.
-Comes with a compression sack.
-Cheap, really cheap. I don't think I can express this enough. If you have a 20% off coupon, take $11 off to make it even cheaper.
-Very roomy. I'm 6'1" and had plenty of room for the feet.
-Sold from REI. This means you can return it after using it if it's not what you were expecting.