What should you know about sweating at night?

A hot room, heavy bedding, alcohol, some medicines, anxiety, or hormonal changes around menopause can make sweating more likely. Night sweats may also accompany infections such as glandular fever, brucellosis, or HIV infection, and some blood or thyroid conditions. A symptom alone cannot identify its cause. Record when episodes happen, whether you have fever, cough, swollen glands, weight change, itching, palpitations, or daytime sweating, and note any recent travel, exposure, or medicine change.

Keep the bedroom comfortably cool, choose breathable sleepwear, and use lighter bedding. Replace fluids after heavy sweating. Review alcohol, new medicines, and the timing of episodes without stopping prescribed treatment yourself. Arrange a clinical assessment if sweating keeps waking you, so a clinician can examine you and decide whether blood tests or other checks are appropriate.

Seek urgent help for night sweats with severe breathlessness, chest pain, fainting, confusion, or a very high fever. Contact a clinician soon for repeated drenching episodes, persistent fever, unexplained weight loss, swollen glands, a prolonged cough, or marked tiredness.

Ask what causes fit your pattern and whether your medicines, thyroid function, infection risk, or menopausal symptoms need review. Bring a symptom diary and a list of prescribed and non-prescribed products.