Rise and shine! Fling open the window drapes or blinds when as soon as you wake up in the morning to let in sunshine. “You want to use light and stimulation to wake you up for the daytime, then use dark and quiet at night,” says Joyce Walsleben, Ph.D., an associate professor of medicine at the New York University Sleep Disorders Center. “If you can go outside within 15 minutes of waking for 20 minutes and face east, even on a cloudy day, you’ll get enough light to energize yourself for the day.”

www.realsimple.com