Thermal insulated blackout curtains block light, reduce noise, and regulate temperature with thick fabric. Triple-weave curtains use three layers to block 90-100% of sunlight, ideal for bedrooms. Velvet blackout curtains offer a luxurious look with complete privacy. Noise-reducing options minimize outside sounds, perfect for home theaters. Energy-efficient designs help maintain room temperature and lower energy costs. Grommet-top curtains are easy to install with smooth movement. Patterned blackout curtains combine style with light-blocking functionality.