At the Ohio Hang this weekend, we got into a discussion on TQ widths. I made the observation that my 40 degree sleeping bag, when opened and used as a TQ, measures approximately 60" wide at the head end. I am seeing numerous people using TQs of around 54" in width, and I am beginning to wonder why. Granted, you will save weight without having zippers and such, but it doesn't appear to be signifigant enough to invest the time/ money in making or purchasing a TQ when you already have a bag.
My winter UQ is 42" wide, and almost completely envelops me. I end up having far too much material in sleeping bag width, and it either bunches up on top of me, or creates weird lumps and wrinkles to lie on in the hammock.
What is the general thoughts on narrow TQs? By narrow, I am talking as small as 36" at the shoulders. This would appear to save a significant amount of weight, bulk, and material when used with an underquilt that wraps around the body well. In an emergency, go-to-ground situation, my UQ would likely become my TQ.