The Smart Baby Cradle is an innovative full-stack project that integrates IoT technology, web development, and mobile application design to enhance infant care and parental convenience. This end-to-end system is designed to monitor a baby’s environment and ensure their safety and comfort through intelligent automation and real-time communication. At the heart of the system is an IoT-enabled cradle equipped with sensors that detect humidity, motion, and other environmental factors. These readings are processed to assess the baby’s comfort level and identify unusual conditions, such as prolonged stillness or excess humidity, which could indicate a potential risk. When such events are detected, the system can trigger alerts or adjust cradle functions (e.g., vibration or music playback) to soothe the baby. Complementing the hardware is a responsive website built with React, TypeScript, and Tailwind CSS. The website serves as an educational and promotional platform, offering detailed insights into the cradle’s features, technical architecture, and user benefits. It also provides instructions for setup and usage, making the technology accessible to non-technical users. The project also features a mobile application that connects with the cradle in real-time. Parents can receive instant alerts, track environmental metrics, and remotely monitor cradle activity. This seamless connectivity ensures peace of mind and empowers parents with actionable data to make informed caregiving decisions. Overall, the Smart Baby Cradle project demonstrates a practical and impactful application of IoT in everyday life, combining hardware innovation with software usability to solve real-world parenting challenges.