Abstract: The Smart Infant Baby Monitoring System is an IOT-based project. The goal of this research is to lower SIDS. The primary factor in infant mortality is sudden infant death syndrome. Infants' breathing, temperature, heart rate, and digestion are abnormal. If people neglect infants, they are very likely to die. Monitoring those risk variables on a constant basis helps lower the incidence of SIDS. With the aid of IOT, this clever initiative will enable parents to provide assistance from anywhere, whether they are at home or at work. The idea of wanting and caring for infants, along with the need for sensors and cloud technologies, plays a vital role. The Internet of Things (IOT) and modules like the Raspberry Pi, temperature sensor, MAX30100 sensor, and sound sensor are all integrated into this project.. A temperature sensor measures the body's temperature, a MAX30100 measures the infant's heart rate and SPO2, a sound sensor detects crying, and a camera in a Raspberry Pi module measures body position. With the help of all those data, parents may check on their child's health from anywhere in the world. When the modules notice something abnormal, they immediately send their parents an SMS using cloud technology. By doing this, we can lower the number of SIDS.