Greatime 100% Blackout Blind Suction Cup Curtain for Bedroom Roof Windows Office Windows Baby Travel Curtain Window Shades and Blinds Sunshade for Car（Black,15WX30L in）

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Press the curtain against the window: Align the curtain to the window and press the suction cups firmly against the glass. Make sure to push out all the air within the suction cups to establish a firm hold. To ensure your curtains hang evenly, measure and mark the points where you will attach the suction cups before installation. There’s nothing quite like the sleep you get in a room that's so dark you can barely tell if it’s day or night. According to sleep experts, darkness increases our body’s production of melatonin, which helps us zonk out faster and stay that way for longer. Even just a little bit of light can shift our nervous systems into a more alert and activated state, keeping us from getting that quality shut-eye our bodies crave. If the suction cup loses its grip over time, simply press it firmly against the glass again to remove any air that may have seeped into the cup.