Night sweat relief: practical steps and when to get help

Sweating may be encouraged by a hot room, heavy bedding, alcohol, spicy food, stress, fever or a medicine. Menopause may cause hot flushes and sweating during sleep. Hyperthyroidism can increase heat production, while infections such as Glandular Fever or Brucellosis can bring fever and sweats.

Persistent drenching sweats can also occur with conditions including HIV Infection, Lymphoma, Hodgkin Lymphoma or Chronic Myeloid Leukaemia, but sweating alone cannot identify any of these. Treating the cause, rather than masking every episode, is the safer route.

Keep the room cool and use loose, breathable sleepwear with light bedding. Keep water nearby, replace damp clothes or sheets, and avoid alcohol, nicotine, spicy meals and intense exercise near bedtime if they trigger symptoms. A short symptom diary can reveal links with medicines, menstrual changes, stress, fever or particular foods.

Do not stop a prescribed medicine on your own. Ask a pharmacist or clinician whether sweating is a possible side effect and whether an adjustment is safe. If symptoms relate to menopause or another condition, discuss targeted treatment rather than relying on unregulated supplements.

Arrange a medical review when sweats repeatedly soak clothing or bedding, disturb sleep, continue without a clear environmental trigger or occur with fever, swollen glands, cough, diarrhoea, palpitations, fatigue or unexplained weight change. Seek urgent help for chest pain, severe breathing difficulty, fainting, confusion or severe dehydration.

Ask what causes are most relevant to your history, whether your medicines or hormonal symptoms contribute, whether tests are needed, and which relief options are suitable for your health conditions.