The silver grommet top adds a modern touch and provides energy-efficient comfort. The sophisticated designs allow you to decorate your windows in great style. Blackout is perfect for late sleepers, shift workers, seniors, infants, parents, students, and computer operators. These feature innovative triple-weaved fabric construction allowing for single-layer, unlined thermal-insulated blackout curtains. Independent laboratory tests show these curtains block up to 95% of light and insulate against heat and cold.