No matter where you live, California, Texas, or even Florida, if you have annoying sun torments and need a completely dark sleeping environment, choose our curtains - 2-ply lined curtains. You can get a good night's sleep no matter how strong the unwanted light is. Lined curtains are thick enough to completely block out unwanted light and noise, encouraging daytime sleepers and those who have trouble falling asleep to get a good night's sleep. 100% blackout curtains make a room warmer in the winter and block out a lot of heat in the summer, reducing the stress of heating and cooling your home while reducing your energy budget. 100% sun block curtains for windows have a noise reduction function, and because there is a removable felt pad in the middle of the curtain, the noise can be reduced by 10-20 decibels, providing you with a quiet and comfortable resting environment.