Blame it on street lighting, according to researchers from the University of Stanford. The usual situation, when the window shines on a sleeping street lamp, fight which can only blackout curtains. Scientists have tried to take into account data on the quality of sleep 15 thousand people for eight years, says Zee News.
Drew the attention of researchers on the level of illumination of streets and bedrooms the night. In bright lighting the night sleep quality is reduced by 6%, summarize scientists. Light increases the number of awakenings per night and gives full night's sleep.
Most often the victim of night lighting complained of fatigue during the entire working day, chronic lack of sleep. The Council of scientists is simple: to make the darkness in the bedroom. Excellent job with these blackout curtains on the Windows.