If you can't find one you could always sew the full size comforter onto a plain blue (or orange) queen size sheet. I might be wrong about this but I think a queen is only six inches larger than a full (you make your own joke!!). Not sure anyone would notice the difference as it might only be an extra three inches on each side. Plus if it's Orange, it might look pretty good. You might not even have to sew it. You might be able to just lie it on top of a blue or orange sheet or just pin it. #thingsyoulearnedwhenyourmomsewed.a queen size Cuse comforter set like the one pictured below? Apparently they don't think a grown adult would want one since I can only find it in twin and full. Also I live in NC so it needs to be something I could buy online.
View attachment 36197