Light at Night May Hurt Your Sleep - NBC Chicago

    Light at Night May Hurt Your Sleep

    Is the light from your smart phone, tablet or TV making it harder for you to get a good night's sleep? Nesita Kwan reports. (Published Thursday, Sep 12, 2013) Is the light from your smart phone, tablet or TV making it harder for you to get a good night's sleep? Nesita Kwan reports. See More