I found a number of sites that talk about the size of a quilt, and I have a pretty good idea how long to make it based on my height, but width is still an issue. I have the materials, since there doesn't seem to be any real choice on the width of the material, before I commit scissors to material I thought I would post the question here, hitting some people who have made them.

How wide should a quilt be? I've seen some sites suggesting as wide as a sleeping bag, but that seems counter-intuitive. If I go with that width then why not just buy a good bag? Others have suggested half the width of a bag, half width + x inches, others have formulas using shoulder width that would confound Sheldon from Big Bang. One was so convoluted that, if I did it right, was 18" longer than my material!

Any good suggestions?
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