Why does a child develop a fever in the middle of the night?

Oct 19, 2021 Source: Cainiu Health
Disease description:

My child suddenly developed a fever in the middle of the night—what causes fever in children during nighttime?

Doctor's answer (1)
Dr. Wu Xiqing
Fever in children during the night is most commonly caused by bacterial or viral infections. When inflammation is present in the body, an immune response is triggered, leading to fever. Additionally, it may result from excessively high room temperature or overly thick bedding. It could also be due to a cold following exposure to cold. Furthermore, fever may transiently occur after eating or after intense crying.