Sleepout is the first portable blackout curtain that installs on windows in seconds and blocks out light bleeds to make any room 100% dark. By blocking the curtain on light bleeds you’ll get comfortable and get some rest. The patented Sleepout Curtain is produced with high-quality, 100% blackout material. It features locking suction cups and Sleepout Pads for you to adjust the curtain to any window and block any light bleeds – even better than traditional blackout curtains.