trying to find a sythetic sleeping bag

Does anybody know of a very lightweight 0 degree F sythetic sleeping bag either unisex short or womens specific? I had a terrible time finding one until I saw mountain hardwear is FINALLY making their 0 degree ultralamina in a short... but they won't have it out until mid-march 2010 which, unfortunately, is not going to work for me. If you have any ideas please reply, I am a bit desperate. Thanks!

Duplicate thread. See reply in other thread.