The differences between men and women in terms of sleep are based on quantitative data, not just anecdotal evidence. Large-scale surveys on sleep conducted globally show that women sleep, on average, between 20–30 minutes longer than their male peers each night; however, they also report up to 40% higher rates of insomnia and daytime drowsiness.
According to global health studies, around one out of three women will experience chronic issues with sleep at some stage throughout their lives, with significant increases in sleep issues occurring during times of hormonal change.
From this data, we can see a pattern related to biology and lifestyle factors that create differences in sleep requirements, which is where modern science is just beginning to advance our understanding.
How Many Hours of Sleep Do Women Need?
Typically, adult women require approximately 7–9 hours of quality rest at night; however, research indicates that women perform optimally if their nightly sleep approximates 8 hours or more on the upper end of the range.
On average, it takes a woman's body approximately 20–30 additional minutes to achieve the same level of cognitive functioning and recovery from physical exertion as compared to men.
Additionally, during certain times of hormonal change (the menstrual cycle, pregnancy, postpartum recovery, and menopause), the total amount of sleep needed will likely increase to approximately 8–10 hours, depending on what is necessary to maintain good health and energy levels.
Why Do Women Need More Sleep Than Men?
According to the data, women are typically more in need of sleep than men, and this information has been backed by numerous large-population-based studies as well as many different types of sleep-tracking data.
While sleep duration tends to increase with age, women normally average about 20 to 30 minutes more than men per night, although women report rates of insomnia and daytime fatigue that are approximately 30 to 40% higher than those of men.
Global Health research indicates approximately 1/3 of women will have chronic sleep problems at some point during their lifetime, and sleep disruptions tend to greatly increase as women's hormones go through their monthly cycles, as well as during pregnancy and menopause.
Hormonal factors
Women naturally experience hormonal changes each month due to their menstrual cycles, as well as during pregnancy and menopause, and these changes directly impact how women's bodies process sleep.
Research shows that many women will experience up to 60% more sleep disruption during menopause, and approximately 78% of women will experience some level of sleep disturbance during their pregnancy.
Increased rates of insomnia
When compared to men, women are estimated to be 30-40% more likely to experience insomnia, and even though they tend to sleep longer, they report lower sleep efficiency and having trouble sleeping multiple times through the night.
Increased brain workload
Imaging studies show that female brains utilize more areas of their brains simultaneously than male brains for many tasks. Sleep studies report that women's brains require an additional 20–30 minutes of sleep to fully recover after having utilized the brain in this way.
Cortisol and Stress
Cortisol plays an important role in how women respond physiologically to psychological stress. Stress and cortisol reduce a woman's ability to achieve deep sleep, which can ultimately lead to long-term sleep disruptions.
Ongoing studies indicate nearly 30 percent of women globally will experience sleep disruption due to chronic stress during their lifetime.
Life Stages of Sleep Disruption
Throughout life stages, rates of sleep disorders in women dramatically increase during times of significant transition. Rates of sleep disorders in women during the perimenopausal transition (40-50 percent) are markedly elevated and remain elevated into the postmenopausal state.
Immune Function & Energy Expenditure
Women have a greater immune response than men, which leads to greater energy expenditure by the female immune system than the male's. Establishing deep sleep optimally regulates the immune function of a female's body, helping further explain why females accumulate sleep debt more quickly when sleep is restricted.
Tips for Women to Get More Sleep
The amount of sleep that individuals require can vary based on several factors, such as the individual’s age, health, genetics, and lifestyle; however, all individuals, regardless of their gender or sex, will require a different quantity of sleep.
Assessing whether you received adequate amounts of sleep usually shouldn't be done immediately upon waking, but rather, evaluate how well rested you feel later on in the day. How energetic do you feel? Are you able to focus on tasks you need to accomplish?
However, do not wait too long in the day before determining how well rested you feel! It is normal for individuals to feel sluggish after lunchtime; to gain an accurate representation of your level of alertness/energy level, take note of how you are feeling before lunch. Follow the tips below to get better sleep:
- Maintain a consistent sleep and wake schedule
- Limit caffeine after early afternoon
- Reduce screen exposure at least 1 hour before bed
- Create a cool, dark, and quiet sleep environment
- Manage stress with relaxation or breathing techniques
- Align workouts earlier in the day
- Eat lighter, balanced evening meals
- Track sleep patterns across hormonal cycles
- Prioritize sleep during high-stress or hormonal phases
- Seek professional help for persistent sleep issues
Final Thoughts
Biological, hormonal, and neurological differences result in a greater overall need for restful recovery in women's daily lives due to additional recovery demands placed on them through the duration of their lives.
Because women experience approximately 5-7 times higher rates of disrupted sleep, increased sensitivity to stress, and significant hormonal changes throughout their lifetime, women require higher levels of quality sleep to recover.
Women can eremaximize their overall health, energy, and cognitive performance through prioritization of regular, restorative sleep while understanding and appreciating these differences.
