Contrary to popular belief, having hot flashes is not a condition, but a symptom of hormonal imbalance or shifts, particularly among women in their menopausal stage. It varies in severity, from moderate flushing or mild warmth and redness of the face, neck or body, to night sweats that leave the clothes and sheets soaked with sweat. It may not affect the total sleep time, but the overall quality and efficiency of sleep ultimately suffers.