What does it mean if I sweat a lot at night?

Most night sweating is the room, not the body. A warm bedroom, heavy bedding, late alcohol, spicy food, or a workout close to bedtime all raise overnight sweat, and the fix is obvious and quick. Menopause is a major cause - hot flashes do not care what time it is - and many medications list sweating as a side effect, including antidepressants and fever reducers like acetaminophen. Anxiety and vivid dreams do it too. The pattern that changes the meaning: drenching sweats that soak through clothes or sheets, night after night, unexplained by the room or medications. MedlinePlus notes excessive sweating can accompany infections, thyroid overactivity, low blood sugar overnight in people with diabetes, and - the one everyone fears - some cancers, which is why doctors ask about the company it keeps: unexplained weight loss, persistent fever, swollen lymph nodes, or a new cough. Drenching sweats plus any of those deserves a prompt checkup, and the workup is usually blood tests and a chest X-ray - simple. Sorting it at home: drop the room temperature, lighten bedding, and skip evening alcohol for a week. If the sweating vanishes, that was your answer. If soaking sweats continue anyway, book the visit. Pymander is a free AI doctor, 24/7 by text. Describe the pattern and it can help you sort environmental from worth-checking.