Practicing gratitude is a surefire way to create sound sleep... and happiness. People naturally pay more attention to negative situations: disagreements we could have handled differently, work setbacks, and things we ought to have said, for example. But replaying these negative situations before bed only increases stress and keeps you from sleep. So make like Oprah Winfrey: producer, actress, businesswoman and former talk show host, and take some time to reflect on the day's small joys. Oprah has said that she writes down five things she's grateful for before bed each night, and credits this practice for her personal success: “You radiate and generate more goodness for yourself when you're aware of all you have and not focusing on your have-nots,” she wrote in the November 2012 issue of her magazine.