Perimenopause and Sleep

If you've started waking between 2–4am and struggling to get back to sleep, you're in good company. Sleep is often the first thing to break in perimenopause — and the one that makes everything else (mood, weight, brain fog) worse.

Why peri wrecks sleep

• Progesterone drops first — and progesterone is sleep-promoting
• Night sweats — even mild ones fragment sleep
• Cortisol rises — easier to wake, harder to drop off
• Anxiety — common in peri and notorious for early waking
• Alcohol — interacts much worse in midlife

The high-leverage fixes

• Cut alcohol — even one drink fragments midlife sleep
• Magnesium glycinate 200–400mg, 30 min before bed
• Protein at breakfast — stabilises overnight cortisol
• Cool the bedroom — 18°C / 65°F
• Last caffeine by noon
• No screens in bed — and if you wake, don't reach for the phone
• Consider HRT — micronised progesterone in particular is sleep-promoting

When to see a clinician

If sleep loss is disrupting your life for more than 2–3 weeks, talk to your GP or a telehealth platform like Midi or Alloy. HRT (especially micronised progesterone) and non-hormonal options can both help.

Want a perimenopause coach that does this work for you? Lila tracks 20+ symptoms, identifies your trigger foods through photo meal logging, and adapts your plan as your hormones shift — designed by Rebecca Rumsey, MSc, RD.

Related

• Perimenopause insomnia quiz
• Best perimenopause sleep apps