I've got an older WL full length synthetic UQ. I've noticed that the stuffing kind of bunches up and I end up with spots that don't have any stuffing and spots that are stuffed full of stuffing. I spread it out, but it just gets bunched up again. Anyway, I'm thinking about opening one end and stuffing some more (or something different) in there. I'm really thinking about just buying some down, but I've got a HG Incubator on the way, so I don't really want to spend a bunch of money on down. The WL will just be used for an extra when I go car camping with a buddy or something, so weight is really not going to be an issue. Can I just cut open an old pillow and steal the stuffing from it? What would be a good "cheap" option to stuff in those baffles?