Waking up with your clothes or bedsheets soaked in sweat can be uncomfortable, especially when the room is not hot. While night sweats are sometimes caused by simple factors such as warm bedding, repeated episodes can occasionally point to an underlying health condition. Here are seven possible causes you should know about.
1. Sleeping In A Hot Room
One of the most common reasons for sweating at night is sleeping in a room that is too warm. Thick blankets, heavy nightwear and poor ventilation can cause your body temperature to rise, making you sweat while you sleep. Try using lighter bedding and keeping your sleeping environment comfortably cool.
2. Infections
Certain infections can cause night sweats, especially when they produce a fever. Tuberculosis (TB), for example, can cause night sweats alongside a persistent cough, fever, fatigue or unexplained weight loss. Other infections may also cause sweating, depending on the symptoms and circumstances.
3. Hormonal Changes
Changes in hormone levels can affect how the body regulates temperature. Menopause is a common cause of night sweats in women, while some thyroid disorders can also increase sweating. If sweating occurs alongside other persistent symptoms, a healthcare professional can help identify the cause.
4. Certain Medications
Some medicines can cause increased sweating as a side effect. These may include certain antidepressants, pain medicines and medications used to lower blood sugar. If night sweats begin after starting a new medicine, discuss it with your healthcare provider rather than stopping the medication yourself.
5. Low Blood Sugar
Blood sugar can fall too low during sleep, particularly in people who use insulin or certain diabetes medications. Night sweats may occur alongside nightmares, shakiness, a racing heartbeat or confusion. Repeated episodes should be discussed with a healthcare professional because low blood sugar can be dangerous.
6. Stress And Anxiety
Emotional stress and anxiety can activate the body’s stress response, sometimes leading to sweating during sleep. If you are experiencing ongoing worry, poor sleep or frequent nighttime anxiety, managing stress and maintaining a regular sleep routine may help. However, persistent drenching sweats should not automatically be blamed on stress.
7. Certain Serious Medical Conditions
Less commonly, repeated night sweats can be associated with conditions such as lymphoma or other cancers. However, night sweats alone are not enough to diagnose cancer, and many people who experience them do not have a serious illness. Unexplained weight loss, persistent fever, swollen lymph nodes or unusual fatigue may warrant further investigation.