Quoting SherryandMatt:" They make special light blocking backing (the white one) in diffent blocking levels. I have light and airy ones in DD room so I also put blinds in to darken the room. Cute fabric "
Yeah we have blinds up, too. So I think this will be okay, what I already have, right?
Thanks! I was so excited I found it, because all the other Cars ones were all Lightening McQueen, and none of the other characters!