Can Progesteron help with sleep?

Progesterone can aid sleep, especially in perimenopausal and menopausal women, because its metabolites (e.g., allopregnanolone) act as positive allosteric modulators of GABA-A receptors, producing sedative and sleep-promoting effects. Evidence comes mainly from observational studies and small clinical trials; large randomized controlled trials are lacking. Importantly, progesterone is a prescription hormone, not an over-the-counter sleep aid. It should only be used under medical supervision after assessing individual hormone levels. In men or women without hormone deficiency, benefits are unclear and risks (drowsiness, mood changes, thromboembolic events) must be considered. Direct-to-consumer tests (e.g., MyBody-X) can measure hormone levels but cannot diagnose sleep disorders. Combining hormone testing with lifestyle factors (stress, sleep hygiene) is more actionable. Overall: moderate evidence for progesterone as a sleep aid in specific populations, but not a universal solution.