I definitely know that. The bag I am replacing is my father's 30 y.o. bag from REI. It still works great but it weighs over 5 lbs and is a bit of an overkill for where I am going.

Thanks for the Western Mountaineering suggestion. The Versalite looks great but a little warmer than I am looking for. However, the Alpinlite and Megalite are in the 20-30°F range. It looks like lori's suggestion of Adv. 16 carries WM.

Also, I emailed JacksRBetter he recommended the Sierra Sniveler Long with wings or the Mt. Rogers. The Mt. Rogers ends up being a little cheaper and more roomy.