Sofia Axelrod, PhD, is a sleep researcher in the laboratory of Michael W. Young, the winner of the 2017 Nobel Prize in Physiology or Medicine, at the Rockefeller University in New York. She studied in Germany at Eberhard-Karls-University in Tübingen and at Humboldt University in Berlin, where she earned her PhD in biology in 2012. When she is not investigating the molecular basis of sleep, or spending time with her family, she performs classical vocal music on stages across the United States and Europe.

Her passion for the science of sleep and her personal experience using her method with her children and friends' children inspired her to help tired parents everywhere. She wrote the revolutionary book HOW BABIES SLEEP, launched the Kulala app to help parents get their babies on a sleep schedule, and created the Kulala Baby Sleep Lamp with DreamRed light, to help parents and children alike get to sleep and stay asleep more easily. Her ultimate goal is to give parents what they need the most: a good night's sleep.