Why menopause disrupts sleep
Sleep difficulty can involve trouble falling asleep, frequent waking — often triggered by night sweats — and reduced next-day recovery energy. Declining estrogen and progesterone levels shift sleep architecture, increasing light-sleep time and reducing deep restorative sleep stages.
"Sleep disturbance affects 40–60% of menopausal women and is among the top quality-of-life concerns during this transition."
Source: NAMS Menopause Practice: A Clinician's Guide.