It can control the temperature, light and even air quality in your bedroom to help you have a perfect sleep environment.

它可以控制卧室的温度、光线甚至空气质量来帮助您拥有一个完美的睡眠环境。

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Office workers with more light exposure at the work place also tended to have better sleep quality, more physical activity and a better quality of life.

在办公地方能接触到更多光的办公室职员也倾向于会有更好的睡眠质量，有更多的体育活动，而且有更好的生活质量。

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The point in that cycle (light sleep deep sleep and REM sleep) at which you wake can affect how you feel later and may even have a greater impact than how much or little you have slept.

你醒来的那个循环点（轻睡、熟睡、REM睡）会影响你之后的感觉，其影响甚至比你睡觉的长短还大。

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Efforts to increase wakefulness in night-shift workers have focused on the use of light at night to suppress melatonin, a sleep-regulating hormone.

WSJ: Skin Cancer, Driving and Men