Hot Flashes & Cold Brew

If you’ve found yourself wide awake at 2 or 3 AM lately, staring at the ceiling and wondering why you just can’t get to sleep, you’re not alone.

Many women notice that getting to sleep and staying asleep becomes harder in their late 30s and 40s. In the morning, we wake up feeling exhausted, which becomes the norm.

We’ve been programmed to just chalk it up to having “too much on our minds” or stress,

But….

What if I told you that your hormones are actually at fault?

Perimenopause is the transition leading up to menopause, and during this time, our ovaries begin producing less amounts of estrogen and progesterone. These hormonal shifts affect several systems in the body that regulate sleep.

The result?  Us binge watching the entire season of Big Bang Theory…again!

So, let’s break down why this happens.

1. Hormone Fluctuations that Disrupt Your Sleep Cycle

The biggest driver of sleep changes during perimenopause is hormonal fluctuation.

As the ovarian follicle supply declines, hormones become much less stable month to month.

Two key hormones involved in sleep are:

• Estrogen
• Progesterone

Estrogen Changes

Estrogen helps regulate our sleep-wake cycle and mood. When estrogen levels drop or fluctuate, women may notice:

• difficulty falling asleep
• waking frequently during the night
• mood changes that affect rest

Estrogen also interacts with serotonin, a neurotransmitter that helps regulate mood, sleep, digestion, and cognition.

When estrogen fluctuates, serotonin activity can shift too.

Progesterone Decline

Progesterone has a natural calming and sedative effect.

When progesterone levels fall during perimenopause, many women experience:

• difficulty staying asleep
• lighter, less restorative sleep
• increased nighttime wakefulness

Progesterone also helps support breathing during sleep. As levels decline, the risk of sleep-disordered breathing, such as sleep apnea, can increase.

2. Night Sweats and Hot Flashes

Another major reason sleep gets worse is vasomotor symptoms—better known as hot flashes and night sweats.

Up to 80% us of women experience these symptoms during the menopausal transition.

During sleep, hot flashes can cause:

• sudden waves of heat
• sweating
• waking abruptly
• difficulty falling back asleep

These symptoms are thought to occur because hormonal changes affect the body’s temperature regulation system in the hypothalamus.

3. Melatonin Naturally Declines

Melatonin is the hormone that helps regulate our circadian rhythm, or internal body clock.

As we age—and our hormone levels shift—melatonin production naturally declines.

Lower melatonin can lead to:

• longer time to fall asleep
• early morning waking
• disrupted sleep cycles

4. Mood Changes Can Affect Sleep

Perimenopause is also a time when we may become more vulnerable to anxiety and depression.

Hormones, like serotonin and dopamine, influence brain chemicals that regulate mood.

Mood changes during this time can contribute to:

• racing thoughts at night
• difficulty relaxing before bed
• restless sleep

Stress hormones like cortisol can also rise in the evening, making it harder for the body to transition into sleep.

5. Other Sleep Issues Become More Common

During this time, other conditions become more noticeable at night.

These may include:

• Obstructive sleep apnea – pauses in breathing during sleep
• Restless legs syndrome – uncomfortable sensations in the legs that make it difficult to fall asleep
• Nocturia – waking up frequently to pee (and then staying awake because well…now I’m up!)

Ways to Support Better Sleep

Lifestyle and Environmental Changes That Can Help

When sleep starts getting disrupted during perimenopause, medication isn’t always the first step. For many women, simple lifestyle and environmental changes can make a meaningful difference, especially when symptoms are mild.

As our hormones shift, our bodies can become more sensitive to things like temperature, stress, caffeine, and even inconsistent sleep schedules. Creating a supportive sleep environment and establishing calming routines can help signal to your body that it’s time to rest.

One of the most helpful adjustments is keeping your sleep environment cool and comfortable. Many women experience sudden temperature changes at night due to hot flashes or night sweats, so keeping the bedroom cooler, using fans, and dressing in light layers can help manage those nighttime temperature spikes.

Another important habit is maintaining a consistent sleep schedule. Going to bed and waking up at roughly the same time each day—even on weekends—helps regulate your body’s internal clock and supports healthier sleep patterns over time.

It can also help to limit stimulants later in the day. Caffeine and alcohol, especially in the evening, can worsen hot flashes and disrupt sleep cycles. Some women also notice that certain foods—like spicy meals or foods high in sugar—can trigger night sweats or restlessness if eaten close to bedtime.

Movement and Physical Activity

Regular movement can also play a powerful role in improving sleep quality during perimenopause.

Gentle forms of exercise, like yoga, have been shown in multiple studies to improve sleep quality and reduce sleep disturbances in menopausal women. Yoga can also help calm the nervous system and reduce stress, which often contributes to nighttime wakefulness.

Low-to-moderate aerobic exercise, such as walking, cycling, or swimming a few times per week, can also help improve sleep and reduce symptoms of insomnia. Even simple, consistent movement during the day can make it easier for the body to relax and transition into sleep at night.

Some women also benefit from gentle stretching before bed, which can help relax the body and quiet the nervous system, making it easier to fall asleep.

Behavioral and Mind-Body Approaches

When sleep disturbances persist, behavioral therapies can be extremely helpful.

One of the most effective approaches is Cognitive Behavioral Therapy for Insomnia (CBT-I). This therapy is considered the gold standard for treating chronic insomnia and has been shown to help many women in perimenopause improve both sleep quality and the distress associated with nighttime symptoms.

CBT-I focuses on changing habits and thought patterns that interfere with sleep. This may include strategies such as stimulus control, which encourages using the bed only for sleep and intimacy so the brain begins to associate the bed with rest. Another technique, sleep restriction, helps consolidate sleep by limiting time spent lying awake in bed. CBT-I also addresses anxious thoughts about sleep—like worrying that you won’t function the next day—which can often make insomnia worse.

Complementary and Holistic Approaches

Some women also find relief through complementary therapies that support relaxation and stress management.

Practices like mindfulness-based stress reduction (MBSR) can help calm the nervous system and make it easier to cope with the emotional and physical stress that often accompanies hormonal changes.

Other approaches that some women explore include acupuncture or acupressure, which have shown promise in improving sleep quality for certain individuals. Even brief nightly acupressure routines have been associated with improvements in sleep scores in some studies.

Clinical hypnosis has also been studied as a tool for reducing the severity of hot flashes and improving perceived sleep quality in women experiencing menopausal symptoms.

Finally, some women turn to magnesium supplementation as a supportive, holistic approach. Magnesium plays a role in nervous system regulation and muscle relaxation, and it may help support mood and sleep quality for some individuals. But please consult a provider before taking any new supplements.

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Quick Definitions (Medical Terms Made Simple)

Estrogen – A hormone that helps regulate the menstrual cycle, mood, and sleep patterns.

Progesterone – A hormone that has calming, sleep-promoting effects and helps balance estrogen.

Hormones – Chemical messengers in the body that control many functions including mood, sleep, metabolism, and reproduction.

Serotonin – A neurotransmitter that influences mood, sleep, and emotional well-being.

Melatonin – A hormone produced by the brain that helps control the body’s sleep-wake cycle.

Vasomotor symptoms – Symptoms like hot flashes and night sweats caused by hormonal changes.

Circadian rhythm – The body’s internal clock that regulates when we feel awake and when we feel sleepy.

Obstructive sleep apnea – A condition where breathing repeatedly stops and starts during sleep.

Restless legs syndrome (RLS) – A condition causing uncomfortable sensations in the legs and an urge to move them, especially at night.

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Let’s Stay Connected

If you like this post, I’d love to continue the conversation.

You can find more education and support for women navigating midlife hormones on Instagram at @rosawomanshealth.

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This content is for educational purposes only and is not intended as medical advice.