Perimenopause insomnia: why can’t you sleep and what helps?

17 hours ago
6 min read

Perimenopause commonly disrupts sleep: fluctuating oestrogen and progesterone affect temperature, mood and the body’s sleep-wake rhythms, and hot flushes and night sweats fragment the night. But poor sleep isn’t an inevitable part of midlife. What keeps it going is often modifiable, and other drivers, including sleep apnoea, are frequently missed. Understanding which apply to you is the first step.

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Perimenopause is finally getting the attention it deserves, as until recently it has been under-researched and not discussed openly, even between women. It has been such a positive shift that women are now talking more openly about their personal experiences, and it is becoming more commonly understood as a period that can last up to a decade, where symptoms can vary widely in intensity and between individuals.

Whereas it used to be thought of as simply the time when your periods stop and you might experience a few hot flushes, we now understand that symptoms are neurologically driven and that brain fog, insomnia and mood struggles can often be some of the more challenging manifestations to address.

But perhaps one downside of all this increased awareness is that women approaching this stage of life are now often fearing and anticipating a perfect storm of hormonal symptoms and sleep disruption. And with that expectation can come the assumption that poor sleep is an inevitable part of midlife.

It isn’t.

Poor sleep may be common during perimenopause, but common does not mean you need to struggle with poor sleep throughout this season. Research does show that many women experience sleep difficulties during this transition, with estimates suggesting that 40% to 69% of women experience significant sleep disturbance during the menopause transition, while up to 40% meet the criteria for chronic insomnia.

So, if you are finding sleep harder during this period, you are not alone. However, it does not mean women simply have to endure poor sleep until hormones stabilise.

In many ways, perimenopause is an opportunity. The lead-up to these years, and the years themselves, can be an ideal time to invest in yourself and learn the evidence-based strategies that help you understand your sleep, build resilience, and develop habits that support your sleep for decades to come.

Why does sleep change during perimenopause?

The hormonal changes of perimenopause can influence sleep through several different pathways. Fluctuating oestrogen and progesterone affect temperature regulation, mood, stress responses and the body’s sleep-wake rhythms. Hot flushes and night sweats can fragment sleep, while changing hormone levels may also influence our biological sleep systems.

However, hormones are only one part of the picture.

Every woman experiences these changes differently, which is why there is rarely one single explanation or one single solution for disrupted sleep.

Even when trying MHT (menopause hormone therapy) the same hormone can affect different women in different ways. Progesterone, for example, is often described as the “sleep-promoting” hormone because of its calming effects on the brain. Yet in clinical practice, while some women notice an improvement in their sleep when taking progesterone, others can find it has little effect or even negatively influences their sleep.

This variability is one of the reasons generic advice can be unhelpful and can sometimes make women feel like the problem must be them. A thorough assessment helps identify these individual differences and allows us to work with them and find tailored solutions.

What keeps perimenopause sleep problems going?

While a woman may initially wake because of a hot flush, night sweats or changing hormones, it is often what happens next that determines whether this remains a temporary disruption or develops into a longer-term sleep problem. The factor that triggers poor sleep is often different from the drivers that fuel and maintain long-term insomnia.

For example, waking up with a hot flush - sweaty, anxious and with a racing heart – may lead to checking the clock, worrying about how little sleep you have had and how many hours are left, wondering how you will cope the next day, and feeling frustrated that sleep is not happening.

Over time, these responses can teach the brain to associate the bed with alertness, worry and pressure rather than sleep.

So while the hot flush may have been the original trigger for the sleep disruption, it is often the fear and frustration around sleep that can become what keeps the problem going.

This is one of the reasons perimenopause is such an important time to support sleep early. Addressing these patterns before they become established can help prevent temporary disruption from becoming chronic insomnia.

Is it just hormones, or is stress affecting my sleep too?

Hormones are a powerful force and affect everything from our mental health to our physical health, but midlife brings more than hormonal change.

For many women, their forties and fifties coincide with demanding careers, juggling the busy phases of their children’s lives, responsibilities and stress associated with ageing parents, and the greater mental load that comes with managing everyday modern life.

Stress, anxiety and an overloaded nervous system are independent contributors to poor sleep. During perimenopause, these factors often occur alongside hormonal changes, making it difficult to separate one from another, while also compounding each other.

Increased stress can exacerbate hormonal symptoms, and poor sleep can further disrupt stress regulation, creating a cycle vicious cycle.

Could it be sleep apnoea rather than menopause?

One of the challenges during perimenopause is that many of its symptoms overlap with those of other sleep disorders.

Fatigue, brain fog, low mood, poor concentration, fragmented sleep and waking feeling unrefreshed are all commonly attributed to hormonal changes. While hormones can certainly contribute to these symptoms, they are also common features of obstructive sleep apnoea.

The two conditions frequently coexist, yet because the symptoms overlap so closely and can be non-specific, sleep apnoea is often overlooked or mistaken for menopause alone.

Obstructive sleep apnoea becomes significantly more common after menopause. As oestrogen and progesterone levels decline, the muscles that help keep the upper airway open can become more prone to relaxing during sleep, increasing the likelihood of the airway narrowing or collapsing.

Another reason sleep apnoea is missed in women is that it often does not look like the stereotypical picture many people associate with the condition. Rather than loud snoring and obvious pauses in breathing, women are more likely to present with insomnia symptoms, frequent night-time awakenings, morning headaches, fatigue, brain fog, anxiety, low mood or difficulty concentrating.

This means it can be easy to assume that every symptom is “just hormones”, when in reality there may be an underlying sleep disorder contributing to poor sleep and daytime fatigue.

Identifying and treating sleep apnoea can make a profound difference, not only to sleep quality and energy levels, but also to long-term cardiovascular and metabolic health.

What actually helps perimenopause sleep problems?

There are many influences on our sleep during perimenopause. Understanding how your hormones, biological sleep systems, stress, movement, nutrition, underlying sleep disorders and the relationship you develop with sleep itself all interact is key to improving how you feel.

At Autonomy, we help you understand why your sleep has changed so the right mechanisms can be identified and addressed.

For one woman, improving sleep may involve managing hot flushes or considering hormone therapy. For another, it may involve identifying sleep apnoea, addressing iron deficiency, supporting anxiety or treating chronic insomnia.

More often than not, it involves integrating several of these elements into a personalised plan rather than searching for a single solution.

For women who develop chronic insomnia during this transition, Cognitive Behavioural Therapy for Insomnia (CBT-i) remains the gold-standard treatment. Rather than simply teaching relaxation techniques or providing another list of sleep rules, CBT-i targets the thoughts, behaviours and physiological patterns that keep insomnia going long after the original trigger has passed.

Our role is to help you understand what your body needs, remove the guesswork, and guide you with a personalised approach that supports both better sleep and long-term health.

Will my sleep get better after menopause?

Perimenopause may be a period where sleep disruption is more common, but it does not have to be a decade of misery or define how you sleep for years to come.

Seen through this lens, perimenopause becomes more than a hormonal transition. It becomes an opportunity to future-proof your sleep.

By understanding what is driving disruption, addressing the right mechanisms and building habits that work with your biology, you can support not only your sleep, but also your mood, resilience, metabolic health and long-term wellbeing.

Sleep is a biological function that can be supported, strengthened and retrained.

Kate Blyth

Sleep Coach, Autonomy Health

Medically reviewed by Dr Ula Heywood, MBChB, FACEM. Published 24 July 2026.

Understanding what’s driving your sleep is where change starts. In a Discovery Consultation, 30 minutes with a doctor, online or in person, $249, no obligation, we work through what may be affecting your sleep and what would be worth measuring, and tell you honestly what would help.