The perfect sidekick for movie marathons and lazy Sunday mornings， blackout curtains keep entertainment areas as dark as the theaters and stop the sun from imposing on your well-deserved beauty sleep. This pair of curtain panels are crafted from 100% polyester and block both light and sound， while a white foam backing insulates your space against heat and cold. They feature grommet headers that slide easily onto the rod of your choice and can be tossed in the washing machine for easy upkeep.