While looking in the basement for junk to toss out I found two old mattress pads and was just about to toss them when I read the tag on one which said "100% Goose Down". That made me stop and set it aside. Then I found the heavy plastic bag that it originally came in, and it said it was filled with 600 fill weight down.

This thing is huge, it's "King Size" and stuffed with down. It has enough down to fill at least three or four 20º sleeping bags like mine.

I'd like to make a top quilt to use with my sleeping bag, and maybe a vest, but I have no idea about what materials to use, or how to handle or measure fill, or really any clue at all as to how to best put this to use.

Any pointers and suggestions would be really welcome...