Hot flashes at night: what to know

A hot flash is a brief change in temperature regulation. Heat may begin in the face, neck, or chest and spread, followed by sweating, chills, flushing, or a racing heartbeat. Nighttime episodes are often called night sweats when they soak sleepwear or bedding, but the terms can overlap.

Menopause and perimenopause are common contexts, while premature ovarian insufficiency can cause similar symptoms earlier than expected. A hot flash itself does not identify one diagnosis, so the timing of periods, medicines, alcohol or caffeine use, room temperature, and other symptoms matter.

Keep the bedroom cool, choose breathable sleepwear, and layer bedding so you can remove it quickly. A fan, cool water near the bed, and a change of dry clothing may reduce the disruption after an episode.

Write down when episodes happen, what you felt, your menstrual pattern, and possible triggers such as warm drinks, spicy food, alcohol, stress, or a heated room. If symptoms repeatedly disturb sleep, discuss hormone replacement therapy or non-hormonal menopause treatment with a clinician; the suitable option depends on your health history.

Arrange an appointment if episodes are new, frequent, worsening, or affecting sleep, work, or mood. Seek prompt medical advice for drenching sweats with fever, unexplained weight loss, persistent cough, swollen lymph nodes, chest pain, fainting, or severe shortness of breath. A clinician can assess other causes instead of assuming the symptom is hormonal.

Ask whether your pattern fits perimenopause or menopause, whether any medicine or health condition could contribute, and which checks are appropriate. You can also ask how to compare hormone and non-hormone treatment options, including benefits, risks, and alternatives for your circumstances.