The Science of MotherInfant Sleep is a compilation of recent articles that address these important questions. Our goal was to bring together recent evidence about the safety of sleep practices so that parents and professionals can make informed evidencebased decisions. The Science of MotherInfant Sleep is a collaborative project by an international working group of experts on motherbaby sleep. SleepTraining and CryItOut Techniques Do they impact infant health and development What shoul