It was carpet for us and I think I remember reading about cushions as well but I am not positive. I know they always said check for color fastness but frankly that was the least of the worries. If it didn't work, the carpet was coming up as nothing else had worked.
That's what I was thinking when I washed the cover on the couch. We've had that couch for 12 years (I love this couch!) - if it shunk or fade, oh, well, I had to try!
Head hurts and feels "odd". Kinda like when I would smoke too much. I'll have to remember not to do this again. I don't like it. 
Stop stalking me.
It made a nice shirt for her to wear today to "help" me paint the mailbox post. She put the "skirt" on later 