Chris,

I have not done a lot of shopping for sleeping bags, but I sure do like the looks of that Slumberjack. You did not mention the price range you were looking for, so I don't know what you might consider acceptable.

You might want to take a look at Cheaper Than Dirt. The URL is http://www.cheaperthandirt.com. Do a search on "sleeping" and you will see what they have available. One sleeping bag I found there is a U.S. military surplus, is rated for 0 degrees, has a synthetic fill, and sells for $30. It is going to be a bit heavier than the Slumberjack, but it may be worth it, considering the price.

Hope this helps...