Sleep issues are often high on the list of menopausal Symptoms experienced by many women, typically following common symptoms such as hot flushes and night sweats. This is because sleep is heavily influenced by various hormones. When hormone levels fluctuate and decline during menopause, it can disrupt your sleep in several ways.
Progesterone and the stress hormone cortisol play particularly important roles. Progesterone is a hormone with calming and sleep-inducing effects. When its levels decrease during menopause, it can become harder to fall asleep and/or stay asleep. It also affects the airways, potentially leading to breathing interruptions. This lack of oxygen can wake you up, a condition known as sleep apnoea.
Additionally, the production of serotonin, often referred to as the happiness hormone, decreases. This can also affect your mood. In the evening, serotonin is converted into the sleep hormone melatonin. Less serotonin means less melatonin, which in turn results in poorer sleep quality.