Why do newborns sometimes roll their eyes back while sleeping?

It is relatively common for newborns to exhibit upward eye movement or rolling of the eyes during sleep, which is usually related to the immature development of the nervous system. The brain and nervous system of an infant are still in the process of gradual maturation, and their ability to control eye movements is relatively weak. Therefore, during light sleep or rapid eye movement (REM) sleep stages, the eyes may involuntarily move or appear to roll back. Additionally, the eye muscles and coordination abilities of newborns are not yet fully developed, so this phenomenon does not necessarily indicate a health problem. However, if the eye-rolling is accompanied by body stiffness, seizures, or other abnormal manifestations, further observation and medical evaluation may be necessary.

To ensure the baby's well-being, parents are advised to stay calm and carefully monitor the baby's overall condition. If the eye movement is isolated and no other abnormal symptoms are present, there is generally no need for excessive concern. In daily life, it is important to provide a comfortable sleeping environment for the baby, avoid overstimulation, and ensure adequate nutrition. If any concerns arise, or if the eye-rolling occurs frequently and is accompanied by other unusual reactions, prompt consultation with a healthcare professional is recommended.