• Darkens Room for Sounder Sleep: These blackout curtain panels use a thermal lining fabric that eliminates 100% of light, creating a dark, relaxing sanctuary for sleep as well as privacy. • Energy Efficiency: Your blackout panel curtains help you stay toasty warm during the cold winter nights and cool on long, hot summer days. You could even save on your home energy bills. • Thick, Premium Fabric: Made of sturdy polyester material, these long, classy drapes feature a high-quality design that won’t fade in the sun or after a few washes. • Durable Metal Grommets: Each curtain panel features eight gunmetal grommets that are much sturdier and longer lasting than flimsy plastic ones.