1Shading Function: Bedroom darkening curtains can block the sun, dark colors are better, which is very suitable for late nights and naps. 2Opaque: Opaque fabrics balance the temperature of the room, insulating the heat of summer from the cold of winter. Protect your furniture, flooring, and artwork from the sun's ravages. 3Effective Protection: Reduce external noise, protect floors and furniture from chromatic aberration, and ensure complete person affair in the room. 4Polyester Material: This bedroom blackout curtains is made of polyester material, and easy to care for, easily hangs, and slide smoothly. 5Maintenance Method: Gentle machine wash and cold water wash, which do not bleach, iron on medium heat and tumble dry on low heat.