This book provides a structured guide to baby sleep training based on a no-cry approach to building healthy sleep habits for newborns and toddlers. It explains how infant sleep patterns develop, how sleep cycles function, and why consistent routines are essential for physical growth, cognitive development, and emotional stability. The content covers topics such as establishing feeding and nap schedules, creating a sleep-friendly environment, recognizing drowsy cues, handling night wakings, understanding common sleep disorders, and supporting both baby and parent well-being throughout the process. The book is intended for parents and caregivers of newborns, infants, and toddlers who want a practical framework for improving sleep without rigid or distress-based methods. It adopts an explanatory and step-by-step approach, combining developmental insights, sample daily schedules, environmental guidelines, and structured bedtime routines to present sleep training as a gradual, consistent process focused on safety, responsiveness, and long-term healthy sleep habits.