Medical disclaimer: This article is for informational purposes only and should not be taken as medical advice. If you have questions or concerns about your sleep health, please consult your doctor.
The question of whether women need more sleep than men has been studied by institutions including the National Sleep Foundation, Duke University Medical Centre, and the University of Michigan. The short answer from the research is: yes, women generally need slightly more sleep than men, and the health consequences of sleep deprivation are also more pronounced for women.
What Does the Research Say?
In 2008, a study by Duke University Medical Centre in Durham, North Carolina, found that women require more sleep than men. A 2015 study led by Professor Jim Horne of the Sleep Research Centre at Loughborough University confirmed this finding in more specific terms. His team examined 210 healthy middle-aged adults with no history of sleep disorders and found that women needed approximately 20 minutes more sleep per night than men.
The universal sleep recommendation for adults remains 7–8 hours per night. For women, this means erring toward the upper end of that range or slightly beyond it is both normal and scientifically supported.
Why Do Women Need More Sleep?
Professor Horne’s explanation centres on brain function and cognitive load. Women’s brains are structured and wired differently from men’s, and women tend to engage in more intensive multitasking throughout the day. The more actively and flexibly the brain is used during waking hours, the more recovery time it requires during sleep.
Sleep is the brain’s primary recovery mechanism, the period during which neural connections are consolidated, toxins are cleared, and energy stores are replenished. When the brain has been working harder, it requires longer and deeper sleep to complete these restorative processes. Because women typically engage in more simultaneous cognitive tasks, managing multiple streams of information, emotional processing, and social coordination, their brains accumulate more “sleep debt” over the course of a day.
What Happens When Women Don’t Get Enough Sleep?
The Duke University study found that sleep deprivation has significantly more serious health consequences for women than for men. Women who consistently slept less than recommended showed markedly higher rates of psychological distress and faced elevated risks of heart disease, type 2 diabetes, mood disorders, and depression. Other research has found that sleep-deprived women are also more likely to experience heightened irritability and anger the following day.
This asymmetry in health outcomes is one of the most significant findings in the field not only do women need slightly more sleep, but the consequences of not getting it are more severe than for men who experience equivalent sleep restriction.
Why Don’t Women Get Enough Sleep?
Despite needing more sleep, women are consistently more likely to report poor sleep quality. The Sleep Health Foundation surveyed 1,011 Australians over 18 and found that 40% of women reported difficulty falling asleep, compared to 26% of men. Research also shows that women have approximately twice the risk of men for experiencing insomnia, difficulty falling asleep, staying asleep, or both.
The UCLA Sleep Disorder Centre has identified several factors that specifically disrupt women’s sleep, most related to hormonal changes across the lifespan. These include sleep disturbances associated with the menstrual cycle, during which hormonal fluctuations can cause lighter, more fragmented sleep in the days before menstruation.
Pregnancy introduces its own set of challenges, discomfort, frequent urination, anxiety, and the physical changes of a growing body, all of which fragment sleep quality in the second and third trimesters. Menopause brings hot flashes and night sweats that can cause repeated nocturnal awakenings, often dramatically reducing sleep quality for years. In older age, psychological factors, including depression, anxiety, and bereavement, also disproportionately affect women’s sleep.
How Do Men’s Sleep Patterns Compare?
Men are not immune to sleep deprivation, but the consequences manifest differently. While men are statistically less likely than women to develop the health complications associated with poor sleep, they are more likely to underestimate or dismiss the impact of insufficient rest. Research from the UCLA Sleep Disorder Centre found that men’s sleep patterns are most commonly disrupted by demanding work schedules, family responsibilities, and job-related stress factors that are behavioural and situational rather than biological.
Culturally, men are also more likely to frame insufficient sleep as a marker of productivity or toughness rather than recognising it as a health risk. This attitude makes men less likely to seek help for sleep problems, even when those problems are affecting their health and performance.
Tips for Getting Better Sleep
Regardless of gender, good sleep hygiene makes a measurable difference. Reading a book or listening to calming music before bed helps signal to the brain that it’s time to wind down. Daily breathing exercises or meditation reduce the physiological arousal that keeps people awake. Maintaining a consistent sleep schedule, including on weekends, anchors the circadian rhythm and makes falling asleep easier over time. Keeping the bedroom cool and dark supports the drop in core body temperature that the brain needs to initiate deep sleep. Avoiding screens in the hour before bed reduces blue light exposure, which suppresses melatonin production.
For strategic napping, sleep researcher Dr Michael Breus recommends keeping naps to either 25 minutes (a light restorative rest) or 90 minutes (a full sleep cycle). Anything in between risks leaving you in deep sleep when you wake, causing grogginess that can last for hours. If sleep difficulties persist despite good sleep hygiene, consulting a doctor is the appropriate next step.
Conclusion
The evidence is clear: women generally need around 20 minutes more sleep per night than men, and they face greater health risks when that need goes unmet. Hormonal, physiological, and social factors combine to make women’s sleep more vulnerable to disruption at every life stage. Recognising this is the first step toward taking sleep seriously as a health priority, not a luxury. If you’re a woman and you find yourself needing more sleep than the people around you, the science is firmly on your side.
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