And as women, no two weeks are the same – 7 in 10 women report disrupted sleep in the late luteal phase of their cycle; and in menopause, these changes are no longer cyclical; they’re chronic, leaving 9 in 10 struggling to sleep.
The evidence is clear: sleeplessness doesn’t end when you wake up – it erodes through your days. And while this may have been your past, it needn’t be your future.
Today, I’m sharing my Elite Sleep Strategy For Women – a practical toolkit designed for female physiology, the blueprint from my keynote Elite Sleep for Women. Because woman to woman; my mission is to help you sleep, rise and thrive – and this science makes it possible.
With temperature fluctuations one of the root causes of sleeplessness – especially for women – research commissioned by sleep technology bedding brand Rest found that, due to overheating:
73% wake exhausted
60% feel stressed
67% experience a decline in work performance
50% are more likely to argue with their partner
First, why can’t we sleep in our luteal phase and menstruation?
Problem 1: Temperature instability
When oestrogen declines, core body temperature fluctuates overnight, triggering micro-awakenings, and lighter, broken sleep.
- Melatonin, our key sleepiness hormone, needs a drop in core body temperature for optimal production. But when overheating – even if you don’t realise – melatonin is delayed. Result? You usually stay up later, sleep less and are exhausted in the morning – not only because you didn’t get your 7-9 hours, but because of residual melatonin.
- Unstable temperature can also trigger a cortisol rise, a stress hormone linked to nighttime wakings, especially at 3am.
Problem 2: Progesterone declines
When progesterone declines, GABA activity falls – the primary calming signal for the nervous system. As a result, adrenaline and cortisol increase, and your nervous system is hypervigilant, on high alert for a problem to solve, a crisis to save.
You’re not overreacting – your nervous system is in overdrive.
Problem 3: Blood sugars become unstable
When our sex hormones drop, so does insulin sensitivity, destablising blood sugars in the process. Overnight, this increases your risk of low blood sugar levels, spiking adrenaline and cortisol, and again, fragmenting sleep.
Note – dieting, prolonged intermittent fasting (14 hours+), caloric deficits, low protein / carbs / fat exacerbates this.
And what happens in menopause?
All of the above, but magnified. What was once a temporary disruption becomes a persistent roadblock – with extensive mental, physical and physiological consequences.
Ok so… What happens when we don’t sleep enough? And why do we need sleep?
Mentally:
Slow wave sleep restores our prefrontal cortex, responsible for decision making, judgement and focus. This is so much so that, after just one night of insufficient sleep, our cognitive performances matches someone with a B.A.C of 0.05 – legally drunk.
Second, beta amyloid clearance. In slow wave sleep, it’s up to 60% higher compared to wake, enabling you to think clearly. After just one night of insufficient sleep, it can increase 5%, while chronic short sleep – 6 hours – has been associated with a 63% increased risk of memory problems, and a 30% higher risk of dementia.
Third, REM helps translate newly stored memories into meaningful information, supporting problem solving and creativity – one study found just 14 minutes of REM can increase the likelihood of solving a complex problem by 40%.
Sleep isn’t a wellness tool – it’s a clarity tool.
Emotionally:
Slow wave sleep downregulates (lowers) cortisol, helping us move from fight or flight into rest and digest.
REM is invaluable too – it’s in this sleep stage that new + old information are consolidated, and the emotions associated within are neutralised. Believed to be self protective, this is exactly where “sleep on it, you’ll feel better in the morning” comes from.. And yes, it’s real.
And… if we don’t get enough sleep?
- After 1 night of insufficient sleep, cortisol can increase 37%
- Long term, chronic lack of sleep – as in insomnia – can increase our risk of an anxiety disorder by 17 times
- It can also increase the risk of depression by 10 x times
Mental health isn’t only psychology – it’s biology, with sleep at the epicentre.
Physically:
We feel tired, yes. But it’s so much more than that.
70% of human growth hormone is produced in Slow Wave Sleep, enabling cellular repair, recovery and immune function.
And, when we don’t get enough – e.g. sleeping less than 6 hours just for one week rather than 7+, our risk of catching a virus can increase by 4 times.
For our cardiovascular health – large scale research of 475,000+ found a 48% higher risk of heart attack when sleeping 6 hours long term. We think we are fine with 6 hours – this data tells us otherwise.
Lastly, a 2025 study, with over 2 million people, analysing factors to predict how long we will live – physical activity, employment, education, sleep – found sleep the second strongest predictor of life expectancy – more so than diet, more than exercise – beaten only by smoking.
Sleep, nutrition, mindset and movement – we used to believe they were all equal pillars of health. They are not. Sleep is the king, the foundation, the CEO – the others are executives.
So… what is the Elite Sleep Strategy – For Women?
There are 5 tools – like 5 teams in a business:
- Data
- Design
- Evening Exit
- Morning Minutes
- Chrono-nutrition
Each operates independently and interdependently, with success in one supporting the others. While I cover all of them in my keynote, Elite Sleep For Women, here, we’ll cover data and design.
Tool 1: Data
First, track your cycle – essential. So you understand: “why did I sleep so badly last night? Why did I wake up? Your cycle leaves clues.
Track key biomarkers too:
- Sex hormones
- Stress hormones
- Inflammation
- Glucose
- Micronutrients – iron, vitamin D and magnesium especially
And of course – track your sleep! Your sleep is your nightly scorecard – it tells you, with zero uncertainty, how well did you actually recover, and what can you expect of yourself today?
Your data becomes your destiny, because what get’s measured, get’s managed.
Tool 2: Design
Creating a Circadian Cave is not by chance, but by choice.
With overheating a problem for 51% on a regular basis, and 22% on a nightly basis (more research uncovered by sleep technology bedding brand Rest), this is critical, non negotiable, an absolute must. And if you’re thinking, “what about my hubby?” – don’t worry, this will help him become an Elite Sleeper too.
Best thing is – once it’s done, it’s done. While the other tools here are rituals and routines, this one is set and forget – like your Netflix subscription.
First, light:
- Within 2 hours of bed, keeps lights below 30 lux (candlelight)
- If you can, use red night lights (like the ones for the kids)
- Ensure this is at / below eye level
Very specific, I know. Of all factors to control your circadian rhythm, light is first – temperature a close second. Light stimulates cortisol and suppresses melatonin – the exact opposite of what you want in the evening. Research shows bright light within 1 hour of bedtime can suppress melatonin by up to 58%, meaning that, in the hours before bed when you’re meant to be winding down, you’re still wide awake. Sound familiar?!
Having the light at eye level is helpful too – if it’s overhead, it mimics bright sunlight in the middle of the day, triggering adrenaline and cortisol release – more so than if it were at eye level.
Next, temperature:
- Air con at 18 degrees
- Keep a window open for airflow
- Use cooling bedding, including sheets, doona and pillowcases – I recommend Rest’s Evercool Sleep System, engineered with science and hot sleepers in mind.
- If you can, get a cooling mattress topper.
Keeping the room cool you probably already do, but only 28% of us use cooling bedding. Remember, the problems with female physiology are largely rooted in temperature instability, and this helps resolve that.
Keeping cool overnight to sleep properly is not a personal preference – it’s a biological need, especially for women.
Now ladies, for the rest of the Elite Sleep Strategy For Women – come along to my next keynote, or book one in! With International Women’s Day March 8, and World Sleep Day March 13, it couldn’t be more timely – email hello@thesleepretreat.com.au.
By Olivia Arezzolo
