Hot flashes, also known as hot flushes, are marked by periods of sudden, intense feelings of warmth that begin at the chest and radiate to the neck and face, along with flushing, sweating, and heart palpitations, lasting several seconds to minutes. Compared to healthy postmenopausal women, breast cancer patients and survivors are prone to experiencing more severe and longer-lasting hot flashes. A bothersome symptom, hot flashes can occur anytime during a 24-hour period, but those occurring at night are most troubling because they interfere with sleep. Sleep deprivation negatively impacts daytime functioning as well as pain, fatigue, depression, and anxiety levels, diminishing quality of life significantly.