The curtains come in 15 sizes and 31 colors. "It's a great way to keep the sun away and also keep our privacy." The Estelar Textiler Blackout Curtains can be found up to 54% off for a limited time.

BGment Classic Blue Blackout Curtains, $15 (was $30) at Amazon. Courtesy of Amazon. Made of triple-woven microfibers, these light-blocking curtains are lightweight and silky-smooth to the touch.