Family Sleep Institute: familysleepinstitute.com Are You Sleeping Enough? Everything You Need to Know About Sleep Cycles.
June 27, 2013.http://www.myprgenie.com/view-publication/are-you-sleeping-enough-everything-you-need-to-know-about-sleep-cycles-tips
Nutrition News: nutrtionnews.com “Should Babies Cry Themselves Back to Sleep?”
Rye Patch: ryepatch.com “Safe to Sleep Campaign.” May 3, 2013. http://rye.patch.com/blog_posts/safe-to-sleep-campaign#photo-first