Batt-Mart has it - I emailed them and got this response last week regarding queen size batt:
At this time we do not offer individual batts. We sell by the case, here is a link to that item: http://www.batt-mart.com/site/490194...C-WP-2665-CASE
They don't sell it by the yard yet - apparently it's a very new product. The case has 4 queen sized batts.