The baby sleeps all over the body hot can be seen in physiological conditions, may also be respiratory tract infection, digestive tract infection, rheumatoid arthritis and other factors. 1. Physiological conditions: indoor temperature is too high, the quilt is too thick and other factors can cause the baby sleep all over the body hot, parents should pay attention to balance the indoor temperature, to ensure that the ventilation. 2. Respiratory tract infections: If your baby’s whole body is hot when he sleeps and accompanied by coughing and runny nose, you should consider that it is caused by pneumonia, pharyngitis, bronchitis and so on. 3. Digestive tract infections: if the baby sleeps all over the body hot and accompanied by abdominal pain, diarrhea, nausea and other symptoms, should be considered to be caused by acute gastroenteritis and other diseases. 4. Rheumatoid arthritis: can also lead to the baby sleep all hot, often with multiple large joint pain, swelling and so on. The baby sleeps all over the body hot, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.