Thanks, Trueblood. Interesting how the reviewer labels it a quilt. More like a sleeping bag with an enclosed footbox. My needs are a full on quilt without an enclosed footbox.
The biggest hurdle is the length. I have found plenty of rectangular sleeping bags that fully unzip and form a quilt like presence, which will work, however finding something over 80" and affordable is proving difficult. I did find a Kelty, but the length is only 76 inches. I guess backpackers are shorter people?