Bed sized? I'd pack it up and send the sucker to my sister in law who's a longarmer. LOL....
I just learned about the spray... and the mess it makes. Still, there was another thread on there that talked about how she covered her big bed and floor around it with old sheets? I think, then laid the sandwich over the top of the bed... sprayed the middle first, pinned the edges. Roll up quilt and take it back to the sew room. Roll up sheets and take em to the washer.
I'm going to try that next... sounded like a great idea to me.