It is more common for babies with fever to sleep all the time. Since fever consumes physical energy, babies can reduce energy consumption by sleeping, so it is a protective mechanism of the human body. However, parents should pay attention to determine whether the baby’s mental state before sleeping is good, whether the sleep process has been stable, whether there is a breathing effort and so on. If the above conditions are good and there is a low fever, such as around 38℃, the baby can be allowed to continue sleeping without any treatment. If the temperature rises to 39℃-40℃ in a short period of time during the monitoring process, parents can use antipyretic suppositories, which can achieve the effect of cooling down the fever without affecting the baby’s sleep. For children with a history of febrile convulsions, parents should pay attention to temperature fluctuations and use antipyretic medication if necessary. If the baby has poor sleep conditions or has been having strange noises, it suggests that the poor sleep conditions may be related to their own illness. Parents should send the child to the hospital for relevant examinations, as many diseases such as intracranial infections, encephalitis, toxic encephalopathy, etc., children are often in a drowsy state.