sleep quizzes.
http://www.besthealthmag.ca/best-you/sleep/quiz-are-you-a-healthy-sleeper/
http://www.redbookmag.com/body/health-fitness/advice/g1363/sleep-problems
https://psychcentral.com/quizzes/sleep-quiz.htmpsychcentral.com/quizzes/sleep-quiz.htm