Sleep Hygiene Made Simple: Eight Steps to Better Rest

One extra hour of quality sleep can raise IVF success rates by 25%.

You may be surprised to learn how deeply your sleep habits can affect your fertility journey. Research shows that both men and women who struggle with poor sleep or irregular sleep patterns face higher risks of infertility. In fact, sleep disturbances can disrupt the delicate balance of hormones essential for conception, and these effects are seen across all genders and ages.

If you are seeking to grow your family, prioritizing sleep is not just about feeling rested; it’s about supporting your reproductive health. Studies link sleep deprivation to lower sperm quality in men and to menstrual irregularities, reduced chances of pregnancy, and even lower success rates with fertility treatments in women. The good news: improving your sleep hygiene is a practical, compassionate step you can take to boost your chances of conception.

You are not alone if you find sleep challenging, especially during stressful times. By making small, consistent changes to your sleep routine, you can nurture both your well-being and your fertility. Your rest matters—for your health, your future, and your family.

Why does better sleep matter for fertility outcomes?

Better sleep directly supports your fertility. High-quality sleep helps regulate the hormones that control your menstrual cycle, ovulation, and sperm production. When you sleep poorly or have irregular sleep patterns, your body’s reproductive system can become disrupted, making it harder to conceive. For example, women with poor sleep quality have up to 22% fewer mature eggs retrieved during in vitro fertilization (IVF) and significantly lower rates of good-quality embryos and successful pregnancies.

Key reasons better sleep matters for fertility outcomes:

• Hormone Regulation: Sleep helps balance hormones like follicle-stimulating hormone (FSH), luteinizing hormone (LH), and prolactin, all crucial for ovulation and conception. Disrupted sleep or circadian rhythms can throw these hormones off, making it harder to get pregnant.
• Egg and Embryo Quality: Poor sleep quality can reduce the number of eggs retrieved by up to 23% and the number of mature eggs by up to 22% during in vitro fertilization (IVF). It also lowers the number of good-quality embryos and blastocyst formation rates, which are essential for a successful pregnancy.
• Pregnancy Outcomes: Women with good sleep quality have higher clinical pregnancy and live birth rates (up to 12% higher) compared to those with poor sleep. Difficulty falling asleep more than three times a week can reduce blastocyst rates by over 60%.
• Sleep Duration and Timing: Both too little and too much sleep, as well as frequent long naps, are linked to lower egg maturation and poorer IVF outcomes. The best outcomes are seen with consistent, moderate sleep patterns.
• Stress and Sleep: While stress is often linked to fertility, recent research shows that poor sleep itself; regardless of stress can negatively impact fertility treatment results
• Circadian Rhythm Health: Disrupted sleep or irregular sleep schedules (like shift work or late bedtimes) can disturb your body’s internal clock, leading to lower pregnancy rates, higher miscarriage risk, and poorer outcomes with fertility treatments.
• Menstrual Regularity: Poor sleep is linked to irregular menstrual cycles, anovulation (lack of ovulation), and conditions like polycystic ovary syndrome (PCOS), all of which can make conception more difficulty.
• Sperm Health: In men, sleep deprivation can lower testosterone, reduce sperm count and motility, and increase sperm DNA damage, all of which decrease fertility potential.
• Immune Function and Inflammation: Poor sleep increases inflammation and disrupts immune balance, which can interfere with embryo implantation and early pregnancy maintenance.
• Oxidative Stress: Sleep disturbances raise oxidative stress in the body, which can damage eggs, sperm, and reproductive tissues, further reducing fertility.
• Obstructive Sleep Apnea (OSA): OSA is more common in women with infertility, especially those with PCOS, and is associated with poorer reproductive outcomes.
• Psychological Well-being: Poor sleep is linked to higher rates of anxiety and depression, which can further disrupt reproductive hormones and lower the chances of conception.

As summarized in a 2024 systematic review in BMC Women’s Health: “Sleep disturbances are significantly associated with infertility. Poor sleep quality, extreme sleep durations, and certain sleep chronotypes are associated with poorer fertility treatment outcomes, such as a reduced number of retrieved oocytes, decreased embryo quality, and lower fertilization rates”.

The Centers for Disease Control and Prevention (CDC) recommends 7–9 hours of sleep per night for adults to support overall and reproductive health. Prioritizing your sleep is a practical, evidence-based way to support your fertility journey and improve your chances of a healthy pregnancy.

For a full wind-down plan, see our Night Wind-Down routine.

Step 1—Can a fixed bedtime really “reset” your fertility clock?

A fixed bedtime can play a significant role in supporting your fertility. Recent research shows that women who consistently go to bed earlier; specifically before 10:45 p.m. have a lower risk of infertility. In a large U.S. study, women with bedtimes after 10:45 p.m. had a 22% higher risk of infertility, even after accounting for age, body mass index (BMI), and other lifestyle factors. The risk was even greater for those with higher BMI. Another study found that women who followed an early-to-bed, early-to-rise routine had the lowest rates of infertility, while late bedtimes and late wake times increased infertility risk.

For men, going to bed before 10:30 p.m. was linked to better semen quality, while late bedtimes and irregular sleep patterns were associated with lower sperm count and motility. These effects are likely due to the way sleep timing helps regulate your body’s circadian rhythms, which in turn control the hormones essential for ovulation, sperm production, and overall reproductive health.

Dr. Hanzhi Zhang, MD, lead author of a 2024 study in Frontiers in Endocrinology, explains: “Bedtime was non-linearly associated with infertility, which may provide guidance for sleep behavior in women of childbearing age”. Setting a fixed, earlier bedtime is a simple, evidence-based step you can take to help “reset” your fertility clock and support your reproductive goals.

Step 2—How does morning light exposure super-charge nightly melatonin?

Morning light exposure is a powerful way to boost your body’s natural melatonin production at night. When you get bright light soon after waking, it helps “set” your internal clock, signaling to your brain that it’s daytime. This clear signal allows your body to produce melatonin more efficiently and at the right time; helping you fall asleep faster and enjoy deeper, more restorative rest. Studies show that just 30 minutes of bright morning light can shift your circadian rhythm, leading to earlier and stronger melatonin release in the evening.

Here’s how morning light super-charges your nightly melatonin:

• Resets Your Internal Clock: Bright light in the morning shifts your circadian rhythm earlier, so your body starts producing melatonin sooner in the evening. Even a single 30-minute session of bright light (3,000 lux or more) can advance your melatonin onset by up to 1.8 hours, making it easier to fall asleep at night.
• Boosts Melatonin Levels: Exposure to bright light during the day, especially in the morning, increases the total amount of melatonin your body produces at night. This effect is even stronger when combined with a tryptophan-rich breakfast.
• Protects Against Nighttime Light: Morning and daytime light exposure makes your melatonin system more resilient, so evening artificial light is less likely to suppress your melatonin production.
• Improves Sleep Quality: By advancing melatonin onset and increasing its nighttime levels, morning light helps you fall asleep faster, sleep more deeply, and wake up feeling more refreshed.
• Supports Mood and Alertness: Morning light not only helps regulate melatonin but also boosts cortisol at the right time, supporting daytime alertness and a positive mood, which are important for overall well-being and fertility.

The Centers for Disease Control and Prevention (CDC) recommends getting natural light exposure in the morning to support healthy sleep and circadian rhythms. By stepping outside or opening your blinds each morning, you give your body the signal it needs to super-charge your nightly melatonin and support your fertility journey.

Step 3—What makes a “fertility-friendly” sleep environment?

A “fertility-friendly” sleep environment is one that supports deep, uninterrupted rest and keeps your body’s internal clock (circadian rhythm) in sync—both of which are crucial for reproductive health.

Key features include a dark, quiet, and cool bedroom, as darkness helps your body produce melatonin, a hormone essential for regulating reproductive hormones and protecting eggs and embryos.

Avoiding screens and bright lights before bed is important, as artificial light can disrupt melatonin production and throw off your circadian rhythm, which is linked to lower fertility and higher miscarriage risk.

Blackout curtains or an eye mask block blue LEDs that slash melatonin by 50%, while white-noise machines cut partner-induced awakenings by 38%. If your mattress is over eight years old, swapping it can halve micro-arousals.

Keeping a consistent sleep schedule; going to bed and waking up at the same time every day; helps stabilize hormone cycles that control ovulation and sperm production.

Set bedroom temperature to 60–68°F (15.5–20°C); cooler air extends deep-sleep stages where growth hormone spikes.

Reducing noise and minimizing stress in your sleep environment also matter, since stress and poor sleep quality are both associated with lower IVF success rates and impaired fertility.

For couples, ensuring both partners get good sleep is important, as sleep deprivation can harm both male and female reproductive health.

In summary, a fertility-friendly sleep environment is dark, quiet, cool, screen-free before bed, and supports a regular sleep schedule, all of which help optimize the hormones and processes needed for conception and a healthy pregnancy.

Step 4—Why should screens go dark one hour before bed?

Screens should go dark at least one hour before bed because the blue light they emit can disrupt your body’s natural production of melatonin, the hormone that signals it’s time to sleep. Evening and post-bedtime use of smartphones, tablets, and other digital devices is linked to poorer sleep quality, shorter sleep duration, and delayed sleep onset; all of which can negatively impact fertility by disturbing the hormonal rhythms essential for ovulation and sperm production.

In men, studies show that using screens at night is associated with lower sperm motility, reduced sperm concentration, and a higher percentage of immotile sperm, likely due to both sleep disruption and direct effects of light exposure on reproductive hormones.

For women, screen time before bed has been linked to increased risk of hypertensive disorders during pregnancy, which can further complicate fertility and pregnancy outcomes. The light from screens essentially “tricks” your brain into thinking it’s still daytime, delaying melatonin release and shifting your internal clock later, which can make it harder to fall asleep and reduce the restorative quality of your rest.

By turning off screens an hour before bed, you help your body maintain a healthy circadian rhythm, optimize melatonin production, and support the hormonal balance needed for fertility.

Scrolling in “night mode” lowers brightness, not wavelength, so trade screens for a Daily Joy Journal entry to unload worries without glare.

Step 5—How does a calming ritual switch off fertility-killing cortisol?

A calming ritual before bed such as meditation, yoga, or guided mindfulness, helps lower cortisol, the main stress hormone, which is known to interfere with fertility by disrupting ovulation, egg quality, and hormonal balance. Mind-body interventions like meditation and yoga activate the body’s relaxation response, shifting the nervous system from “fight or flight” to “rest and digest,” which directly reduces cortisol levels and stress.

In women undergoing fertility treatments, regular guided meditation has been shown to significantly decrease anxiety and depression, improve emotional regulation, and enhance overall fertility quality of life. Studies in pregnant women found that those who practiced meditation and yoga had lower maternal and fetal cortisol levels, fewer pregnancy complications, and healthier newborns compared to those who did not.

High stress, as measured by biomarkers like alpha-amylase and cortisol, is linked to lower chances of conception during the fertile window, so reducing stress through calming rituals can directly improve the probability of getting pregnant.

A 15-minute wind-down drops evening cortisol by 27%. Stack mini-tools: the One-Minute Sigh releases chest tension; five rounds of Breath Anchoring slows heart rate. A warm bath at 104°F / 40°C, taken 90 minutes before bed, speeds sleep onset by 10 minutes and leaves many hopeful parents feeling both cleaner and calmer.

Mindfulness also boosts self-regulation and acceptance, helping women cope better with the emotional challenges of infertility, which further supports reproductive health. In summary, a nightly calming ritual helps “switch off” fertility-killing cortisol, supports hormonal balance, and creates a more favorable environment for conception and a healthy pregnancy.

Step 6—Which evening nutrition tweaks defend your reproductive hormones?

Evening nutrition plays a crucial role in defending reproductive hormones by influencing inflammation, metabolic balance, and hormone regulation. Consuming healthy fats, such as those found in evening primrose oil, can reduce systemic inflammation, improve insulin sensitivity, and help normalize reproductive hormones like leptin, prolactin, and testosterone, which is especially beneficial for women with obesity-related hormonal disturbances.

Maintaining a balanced intake of unsaturated fats over saturated fats is important, as saturated fats can harm oocytes and embryos, while unsaturated fats support optimal reproductive function by positively affecting metabolic hormones like leptin and IGF-1. Stable blood sugar in the evening, achieved by limiting high-sugar and high-saturated-fat foods, helps prevent post-meal oxidative stress and inflammation, both of which can disrupt the delicate hormonal balance needed for fertility.

For women with PCOS, evening eating habits that favor fiber, legumes, olive oil, and fish, while reducing simple carbohydrates, saturated fats, and processed meats are linked to better insulin sensitivity and healthier hormone profiles. Nutrient sensors in the body respond to glucose, fatty acids, and amino acids, directly affecting the central reproductive axis and the release of hormones that control ovulation and fertility.

In summary, evening nutrition tweaks that emphasize anti-inflammatory fats, fiber-rich foods, and stable blood sugar; while avoiding inflammatory and high-sugar foods—help protect reproductive hormones and support fertility.

Step 7—Can timed exercise make or break deep sleep?

Timed exercise can enhance deep sleep and overall sleep quality when done regularly and with appropriate intensity. Both morning and evening exercise sessions have been shown to increase the duration of non-REM sleep, particularly by extending stage 2 sleep, and can also improve the stability and power of slow-wave (deep) sleep, which is the most restorative phase. Regular physical activity, including both aerobic and mind-body exercises like yoga, is linked to better subjective sleep quality, reduced insomnia severity, and improved sleep efficiency, especially when maintained over several weeks or months. These benefits are observed regardless of whether exercise is performed in the morning or evening, as long as it is not immediately before bedtime. In summary, consistent, well-timed exercise can “make” deep sleep by promoting longer, more stable, and higher-quality restorative sleep.

On the other hand, exercising too close to bedtime; especially vigorous or high-intensity workouts, can potentially “break” deep sleep for some individuals. They do so by delaying melatonin release and raising core body temperature, which may disrupt the body’s natural circadian rhythm. While most studies find no significant negative effects on sleep quality if exercise ends at least an hour before bed, some people may experience difficulty falling asleep or reduced subjective sleep quality if they exercise intensely right before trying to sleep. Short-term evening exercise can alter physiological rhythms, and in certain cases, may reduce the time spent in slow-wave sleep or delay the onset of deep sleep, even if overall sleep efficiency is not affected. Therefore, for those sensitive to late-night activity, poorly timed or overly intense exercise in the evening could “break” deep sleep by interfering with the body’s readiness for rest.

Step 8—How do you keep the bed a “sleep-only” zone when TTC stress strikes?

Keeping the bed a “sleep-only” zone is especially important when trying to conceive (TTC) and facing stress, as a dedicated sleep environment helps protect both sleep quality and reproductive health. Stress and sleep disturbances can disrupt the hormonal balance necessary for fertility, increasing activation of the stress-response system (HPA axis) and leading to higher levels of cortisol. This negatively impacts ovulation, implantation, and overall reproductive function.

To reinforce the bed as a sleep sanctuary, avoid using it for activities like work, screen time, or stress-related conversations, as these can create mental associations between the bed and wakefulness or anxiety, making it harder to fall and stay asleep. Establishing a calming pre-bed routine such as reading, gentle stretching, or mindfulness, outside the bedroom can help signal to your body that the bed is for rest only.

Good sleep hygiene, including a consistent bedtime, a cool and dark environment, and limiting noise, further supports this association and improves sleep quality. High-quality sleep is linked to better fertility outcomes, including higher rates of conception and live birth, especially in women undergoing fertility treatments. By keeping the bed a “sleep-only” zone and managing stress, you help maintain the hormonal and circadian balance essential for reproductive success.

If you’re awake longer than 20 minutes, move to another room for dim-light reading until drowsy. Couples who practiced stimulus control and Kind Talk for Couples reported quicker sleep onset and warmer connection.

Addressing overlooked sleep–fertility gaps—what else should hopeful parents know?

Sleep quality matters for both men and women. For hopeful parents, it’s important to know that sleep disturbances—such as insomnia, short or irregular sleep, and shift work—are linked to reduced fertility in both sexes. In men, poor sleep can lower testosterone, reduce sperm quality, and disrupt the blood–testis barrier, all of which can impair fertility; encouragingly, some of these effects may be partially reversible with improved sleep. In women, sleep deprivation and circadian disruption can lead to irregular menstrual cycles, ovulation problems, and even early pregnancy loss, as well as lower success rates with assisted reproductive technologies like IVF.

Circadian rhythms and stress are key but often overlooked. Disrupted circadian rhythms; caused by shift work, jet lag, or irregular sleep schedules, can alter reproductive hormone levels (like FSH, LH, and prolactin) and increase miscarriage risk. Stress and sleep problems often reinforce each other, creating a cycle that further impairs reproductive health for both partners.

Stress and sleep form a vicious cycle. Stress and sleep problems often reinforce each other, creating a cycle that can further impair reproductive health for both partners. Psychological stress can worsen sleep, and poor sleep can increase stress hormones like cortisol, which negatively affect reproductive function 56. Addressing both sleep and stress together; through lifestyle changes, stress management, and possibly integrative approaches like yoga, may offer the best chance for improving fertility. Small, repeatable wins from Tiny Habits, Big Resilience help new rules stick.

Some effects are reversible. Encouragingly, some negative effects of sleep deprivation on fertility, especially in men, may be partially reversible with improved sleep and antioxidant support. This highlights the importance of prioritizing sleep hygiene and stress reduction as part of preconception care.

Hopeful parents should recognize that sleep is not just a background factor but a key, modifiable part of the fertility equation. Prioritizing regular, high-quality sleep, maintaining consistent routines, and managing stress can help optimize reproductive health and improve the chances of conception; both naturally and with fertility treatments.

Your top TTC sleep questions, answered

Can naps replace lost night sleep?
Naps can help reduce sleepiness and partially recover alertness after a poor night’s sleep, but they do not fully replace the benefits of consolidated nighttime sleep for fertility. Nighttime sleep is crucial for maintaining hormonal balance and optimal reproductive function, and chronic sleep loss; even if offset by daytime naps, can still negatively impact fertility in both men and women.

Is melatonin supplementation safe while trying to conceive?
Melatonin supplementation is generally considered safe for short-term use and may even support fertility by acting as a powerful antioxidant, improving oocyte and sperm quality, and supporting embryo development. However, there is no consensus on the ideal dose or duration, and long-term safety data; especially during pregnancy, are limited, so it’s best to consult a healthcare provider before starting melatonin when trying to conceive.

How soon might fertility markers improve after better sleep?
Improvements in sleep quality can lead to better fertility markers such as oocyte quality, sperm parameters, and hormone levels, within weeks to a few months, especially when combined with other healthy lifestyle changes. Some studies on melatonin supplementation and sleep improvement in IVF cycles have shown benefits in oocyte and embryo quality within a single treatment cycle.

Does melatonin help male fertility?
Melatonin may help improve male fertility by reducing oxidative stress in sperm cells, which can enhance semen quality and sperm function. While promising, more research is needed to confirm the best use of melatonin for male fertility, and men should discuss supplementation with their doctor.

Should melatonin be continued after conception?
There is limited evidence on the safety of melatonin supplementation during pregnancy, and most experts recommend discontinuing it once pregnancy is confirmed unless advised otherwise by a healthcare provider. More research is needed to determine its effects on gestational outcomes and fetal health

Final Thoughts

Good sleep hygiene is a simple but powerful tool for supporting fertility. Prioritizing regular sleep and wake times, creating a dark and quiet bedroom, and avoiding screens or stimulating activities before bed help regulate the body’s circadian rhythms and hormone production, both of which are essential for reproductive health. For men, consistent, high-quality sleep supports healthy testosterone levels and sperm quality, while for women, it helps maintain regular menstrual cycles, ovulation, and optimal conditions for conception and early pregnancy.

Even small improvements in sleep quality can make a difference, as poor sleep is linked to lower chances of conception and reduced success with fertility treatments like IVF. Avoiding shift work or irregular sleep schedules when possible, and managing stress, further protect reproductive function. In short, making sleep a priority just like nutrition and exercise, can be a simple, cost-effective way to boost fertility for both hopeful mothers and fathers.

References

1. Sleep disturbances and female infertility: a systematic review. BMC Women’s Health, 24. https://doi.org/10.1186/s12905-024-03508-y

2. Sleep characteristics before assisted reproductive technology treatment predict reproductive outcomes: a prospective cohort study of Chinese infertile women. Frontiers in Endocrinology, 14. https://doi.org/10.3389/fendo.2023.1178396

3. Association between bedtime and female infertility: a secondary analysis from a cross-sectional study. Frontiers in Endocrinology, 15. https://doi.org/10.3389/fendo.2024.1340131

4. Effects of tryptophan-rich breakfast and light exposure during the daytime on melatonin secretion at night. Journal of Physiological Anthropology, 33. https://doi.org/10.1186/1880-6805-33-33

5. Sleep and Reproductive Health. Journal of Circadian Rhythms, 18. https://doi.org/10.5334/jcr.190

6. Effects of electronic screen exposure time on hypertensive disorders in pregnancy: a retrospective cohort study. BMC Public Health, 24. https://doi.org/10.1186/s12889-024-18793-3

7. The Impact of Guided Meditation [Mindfulness Based Intervention] on the Stress Levels in Patients Undergoing Infertility Treatment. Fertility & Reproduction. https://doi.org/10.1142/s2661318223742236

8. Chronotype: A Tool to Screen Eating Habits in Polycystic Ovary Syndrome?. Nutrients, 14. https://doi.org/10.3390/nu14050955

9. Effects of exercise timing and intensity on physiological circadian rhythm and sleep quality: a systematic review. Physical Activity and Nutrition, 27, 52 - 63. https://doi.org/10.20463/pan.2023.0029

10. Effects of exercise on sleep quality in general population: Meta-analysis and systematic review… Sleep medicine, 125, 1-13. https://doi.org/10.1016/j.sleep.2024.10.036

11. Association between sleep deprivation and fertility - a literature review. Journal of Education, Health and Sport. https://doi.org/10.12775/jehs.2025.78.57767

12. Impact of sleep characteristics on IVF/ICSI outcomes: A prospective cohort study… Sleep medicine, 126, 122-135. https://doi.org/10.1016/j.sleep.2024.11.038