The baby’s sleeping temperature of 37.8 degrees is not normal, belongs to the low fever, common causes such as colds, food accumulation or non-infectious diseases. General baby body temperature is 36.3 to 37.2 degrees, such as sleeping temperature 37.8 ℃, consider abnormal, specific analysis is as follows: 1. Colds: most colds are caused by viral infections, and the baby’s immune system is not well developed resistance is low, easy to catch a cold. Often accompanied by fever, cough, runny nose and other symptoms. It is recommended to reduce fever physically such as warm towel wipe, drink more hot water and so on. 2. Accumulation of food: the baby’s digestive system is not yet well developed, when the baby ingests too much or eat indigestible food, easy to cause gastrointestinal disorders, often accompanied by diarrhea, vomiting, fever and other symptoms. 3. Non-infectious diseases: If the baby suffers from tumor diseases such as leukemia, neuroblastoma, or rheumatic immune diseases such as Kawasaki disease, systemic lupus erythematosus and so on. It is recommended that the baby go to the hospital after a detailed examination, under the guidance of the doctor for treatment. The baby sleeps with a temperature of 37.8 degrees, parents need to take the child to the hospital in time for a detailed examination to identify the cause of the disease, under the guidance of the doctor’s treatment, alert the child’s body temperature rises rapidly caused by the baby’s febrile convulsions and so on.