I was always curious as to how well those light weight sleeping bags keep your warm, the ones that fit in a small compression sack that will fit in the palm of your hand, I saw them in the Brigade Quartermaster catalog.
Is this the sleeping bag your thinking about

For some reviews -
http://www.backpackgeartest.org/reviews/Sleep%20Gear/Sleeping%20Bags/Snugpak%20Softie%203%20Merlin/Its a top quality synthetic sleeping bag.