How To Sleep: Menopause, Insomnia and the Sleep Problems That Get Missed
Hormonal changes at midlife can play havoc with your sleep. But not everything that causes sleep disturbance at midlife is hormonal.
Sleep disturbance is one of the most consistently reported symptoms of the menopause transition. Depending on the population studied, somewhere between forty and sixty per cent of women report significant difficulty sleeping during perimenopause, and the figure rises again after the final menstrual period. And yet, as doctors, we are not very good at probing further into sleep difficulties with a structured assessment, meaning that many causes of poor sleep at midlife in women are missed.
Of course, a major cause for sleep disturbance at midlife is hormonal. Vasomotor symptoms from falling oestrogen frequently disrupts sleep and this can happen even when a woman is not consciously aware of having had night sweats. Falling progesterone also plays a role through the withdrawal of its sedative effect on the brain. This means that many women will find that their sleep improves with menopause hormone therapy (MHT). But, not all women. And there are some important diagnoses that get commonly missed.
I recently sat down with Dr Oliver Bernath, a consultant neurologist and sleep physician, to delve into all of this. We talk about what oestrogen and progesterone actually do to sleep, how much HRT can realistically be expected to help, and why waking in the night is a normal feature of ageing. We also cover the conditions that get missed in women, what to do with the numbers your ring or watch gives you every morning, the supplements that work and advice that every woman should follow if they are having trouble sleeping.
Guest Bio
Dr Oliver Bernath is a consultant neurologist and sleep physician based in London. He trained in neurology at the University of Chicago and in clinical neurophysiology and sleep medicine at the UCSF and Stanford sleep centres, and previously directed the Northern California Sleep Disorders Center at Kaiser Permanente in San Francisco. He is certified in sleep medicine by the American Academy of Sleep Medicine, the European Sleep Research Society and the German Sleep Society, and treats the full range of sleep disorders, including chronic insomnia, obstructive sleep apnoea and restless legs syndrome.
What We Cover
02:29 Why sleep falls apart at fifty, and how much of it is really hormonal
• Why blaming everything on hormones misses half the picture at this life stage.
• The changes that arrive at the same age as menopause and affect men just as much.
03:44 Oestrogen, progesterone and what hormone therapy can realistically do
• The menstrual cycle clue that explains why sleep changes in perimenopause.
• How many women see their sleep improve on HRT, and what it does not touch.
06:05 Waking in the night is normal, and how much sleep you actually need
• The evolutionary reason your brain wakes you every ninety minutes, and why you only started noticing it after forty.
• The one question Dr Bernath uses instead of counting hours.
15:18 How an ordinary night waking turns into chronic insomnia
• The three o'clock thought spiral, and the moment it becomes a learned pattern.
• The reframe Dr Bernath uses on himself, which sounds absurd and works anyway.
18:31 Light, body clocks and the treatment that outperforms tablets
• Why morning daylight matters more than anything you do in the evening.
• Melatonin as a body clock signal rather than a sleeping pill, including timing and dose.
22:56 Supplements: which ones do something and for whom
• Magnesium, valerian, ashwagandha and black cohosh, matched to the type of sleep problem.
• Why black cohosh may not work the way most people assume.
27:27 Your hormones are optimised and you still are not sleeping
• The medical conditions that mimic menopausal insomnia and are found on a simple blood test.
• What early morning waking with low mood usually points to.
29:07 Sleep apnoea and restless legs: the diagnoses women are not getting
• The overnight symptoms that should send you for a sleep test, including the ones you can spot without a bed partner.
• Why the standard screening score is skewed against women, and the iron level most GPs will call normal.
34:50 What your Oura Ring or Garmin is actually measuring
• Why the sleep stage percentages are the least reliable number on the screen.
• The overnight oxygen readings that trigger panicked phone calls and rarely mean anything.
47:20 If you take three things from this episode
• Dr Bernath's top recommendations for a woman whose sleep has deteriorated.
• How to weigh the risks of long-term sleep medication against the risks of not sleeping.
Key Takeaways
• Nocturnal awakenings lengthen with age in both sexes and are physiological, not pathological. Insomnia develops when anticipatory anxiety about those awakenings becomes conditioned.
• Hormone therapy improves sleep for a substantial proportion of women, largely through vasomotor symptom control and the sedative effect of progesterone. It does not address age-related sleep fragmentation or a primary sleep disorder.
• Snoring, witnessed apnoeas, morning headache, dry mouth, nocturnal reflux and daytime sleepiness warrant assessment for obstructive sleep apnoea. Current screening tools underestimate risk in women.
• If sleep does not improve on adequate hormone therapy, the differential includes thyroid disease, depression, obstructive sleep apnoea, restless legs with low ferritin, and chronic pain. Ask for the relevant investigations.
Further Resources and Support
Sleep and insomnia
• The Sleep Charity Evidence-based sleep information and a free national helpline staffed by trained sleep advisors.
• Sleep Health Foundation Free plain-language fact sheets on insomnia, melatonin, shift work and sleep in midlife.
• World Sleep Society Global sleep organisation with public education resources and World Sleep Day campaigns.
Obstructive sleep apnoea
• Sleep Apnoea Trust Patient-run charity covering diagnosis, sleep testing, CPAP, driving and travel, with an email helpline.
Restless legs and iron
• Restless Legs Syndrome Foundation Patient information on diagnosis, iron studies and treatment, plus peer support groups.
Menopause and hormone therapy
• International Menopause Society Global menopause body with evidence-based resources and a directory of national menopause societies.
• The Menopause Society Independent evidence-based information on the menopause transition, including a specialist finder.
• Australasian Menopause Society Free information sheets on menopause symptoms, hormone therapy and alternatives.
• Women's Health Concern Patient service of the British Menopause Society, with factsheets on menopause and sleep.
Mood, anxiety and mental wellbeing
• Mind Information and support for anxiety, low mood and depression, including their effect on sleep.
• Beyond Blue Free mental health support and 24-hour counselling line.
Disclaimer
This episode is intended for general information and education. It is not a substitute for individual medical advice, diagnosis or treatment. Please speak to your own doctor or a qualified healthcare professional about your symptoms, your medication and any decision about hormone therapy or sleep treatment. If your sleep is significantly affecting your health, mood or safety, seek medical help.
