One down, five to go.
I ended up adding a one inch foam cushion with a layer of batting over that. It probably wouldn't have hurt to go with a two inch foam, but this will do.
Love the fabric. It goes well with the dark furniture.
I'm not likely to get any more done before Thanksgiving, but at least this one doesn't have the bare slipcover showing and this makes it look like I've actually been accomplishing things around here.