Sleeping itself doesn’t directly reduce fever, but it can help your body fight off an infection and recover from a fever. When you sleep, your body is better able to produce the white blood cells it needs to fight off infections. Additionally, sleeping can help lower your body’s core temperature, which can help alleviate some of the discomfort associated with a fever.
It’s important to note that while sleeping can be helpful in managing a fever, it’s not a substitute for medical treatment. If you have a high fever, it’s important to see a doctor or medical professional who can determine the underlying cause and recommend appropriate treatment. In some cases, fever-reducing medications such as acetaminophen or ibuprofen may be necessary to bring your fever down to a safe level.