Children can sleep with the air conditioner on, but the temperature of the air conditioner should be decided according to the actual temperature, season and tolerance level. If it is in summer, when the outside temperature is higher and the room temperature is higher, you can turn on the air conditioner to about 26-28°C. At this time, the indoor temperature will drop significantly, but not too cold, will not affect the baby. If it is in the winter, the indoor temperature is relatively low, you need to pay attention to the time to open the air conditioning warm air, put a humidifier or put a pot of water in the room to keep the humidity not overly dry, thus affecting health.