Simply put, thermal neutrality is that ideal condition of feeling just right…not too hot and not too cold. Babies and adults alike are most comfortable in this state. For infants, however, being thermally neutral goes beyond comfort. It’s about avoiding the very dangerous condition of overheating, as well as preventing hypothermia from underdressing. Maintaining this ideal state not only promotes safe and restful sleep, it allows a baby’s metabolic processes to focus energy on growth and development.