Sleep in heavenly peace with the Eclipse Thermaback Clark Blackout Window Panel. Eclipse ultra-fashionable blackout panels have been laboratory-tested to block over 99% of outside light and reduce unwanted noise for a better night's sleep. The patented Thermaback technology and innovative design helps conserve heat in winter and keeps hot sunrays out in summer to help reduce home heating and cooling costs. Whether you are looking to enhance your existing decor or going for a complete room makeover, Eclipse curtains give you the versatility and style you need to decorate any room in your home. Hang them in your living room for better TV viewing or in the nursery or kid's room to keep out unwanted noise and light. Machine wash, tumble dry, do not bleach.