What causes neck sweating at night?

Nighttime neck sweating, or nocturnal hyperhidrosis, can be caused by various factors, including hormonal changes, such as those associated with menopause, anxiety, or stress. Environmental factors, such as a warm bedroom or heavy bedding, can also contribute. Additionally, certain medical conditions, like hyperthyroidism or infections, may lead to excessive sweating at night. If the sweating is persistent or accompanied by other symptoms, consulting a healthcare professional is recommended.