hlc.me white thermal insulated 100% blackout curtain liner for 84 inch window panels - complete darkness & window privacy, energy efficient, noise reducing - hooks included (2 panels, 50 w x 80 inch) hlc.me <b>sleep? you can't really function well in life without it.</b><p> blackout curtain panels are a necessity for privacy. being awoken by the sun is actually good for you, but there are times when darkening a room aids in sleep especially for napping children, shift workers or others with non traditional sleep schedules and for blocking artificial night time light such as from a streetlamp. blackout curtains also are energy saving (keeping heat from escaping in the winter and the hot sun from heating up your room in the summer) and help block or muffle outdoor noise.</p> <b>benefits of blackout curtains:</b></p> <b>energy efficient:</b>they can decrease the amount of money spent on heating and air conditioning because of the curtain's ability to reduce the amount of heat lost in cooler months and reflect heat in the summer.</p> <b>sunlight:</b>these blackout curtains are made of tightly woven, dense fabric inter sewn into a triple weave technology to reduce unwanted sunlight. these curtains will stop light from passing through thanks to special treatments and extra tight woven fabrics to help you control the light levels in your room.</p> <b>privacy:</b> if you've ever been kept awake by irritating little noises from the street below that pull you back from the edge of blissful sleep, you'll appreciate the noise reduction abilities of our blackout drapes. the thick blackout fabric of our readymade blackout curtains helps to dampen noises, contributing further to the peaceful sanctuary you need when you are drifting off to sleep.</p>