Three-year-old children sleep at night nosebleeds, the specific treatment should be analyzed according to the severity of the main pressure to stop bleeding, cold compresses, if necessary, need to consult a doctor in time, clear cause targeted treatment. 1. Pressure to stop bleeding: three-year-old children sleep at night nosebleeds, need to immediately press the root of the nose or both sides of the nose to stop bleeding, to prevent the bleeding from continuing to increase. Avoid tilting the child’s head to prevent the blood from flowing back into the throat, which may cause aspiration. 2. Cold compresses: If you can’t stop the bleeding by pressing, you can use a cold towel on the forehead at the same time to make the local blood vessels contract, so as to achieve the effect of stopping the bleeding, and at the same time pay attention to clean up the blood in the nasal cavity, to prevent affecting the breathing. 3. Timely medical treatment: After the above treatment, the nosebleed fails to stop, you need to consult a doctor in a timely manner, as appropriate, medication to stop bleeding treatment or nasal filling to stop bleeding. Secondly, we should also pay attention to find the cause. Nasal mucosa is too dry, rhinitis, blood system diseases may lead to nosebleeds, should be clear cause, targeted treatment.