adkelly6031508871 wrote an answer about Marmot Helium Sleeping Bag: 15 Degree Down on July 21, 2014
I ended up going with a bag w/o a foot zipper and its working fine. I primarily use it as a "down comforter" in my van. The old bag's zipper stopped halfway and an extra vent at the bottom was handy. The new bag's zip goes much farther down so heat doesn't build up as much when unzipped all the way.