5 Common Sleep Myths Debunked: Separating Fact from Fiction for Smarter, Healthier Rest

From the idea of “catching up” on weekend sleep to the belief that everyone needs eight hours a night, sleep myths shape how we rest, often without us realizing it.

Unfortunately, believing these sleep misconceptions can harm our energy, focus, and long term health.

In this blog, we’ll test common sleep myths using the latest science to show what truly matters for good rest. Get ready to make smarter, healthier sleep decisions, one myth at a time!

Sleep Myth #1: “Everyone Needs 8 Hours of Sleep”

As a child, were you told you needed eight hours of sleep to perform well? This isn’t true, but there are reasons for this belief.

1. Roger Ekirch, author and University Distinguished Professor in the Department of History at Virginia Tech, found that early humans typically slept for eight hours each night, but not all at once. Ekirch studied historical works of literature, art, and diaries to determine that people once went to bed at nightfall and slept for roughly four hours. They then woke up for an undetermined amount of time to “contemplate their dreams, read by candlelight, or have sex.” Afterwards, they slid into a “second sleep” for another four hours.

Industrialization brought about the more traditional pattern of consistent sleep. Factories formalized the eight hour workday schedule to improve productivity, making waking up in the middle of the night seem “slothful.” The invention of the first mechanical alarm clock in 1787 and 19th century school schedules with compulsory attendance helped normalize single sleep.

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The shift to single sleep increased anxiety for some, and by the late 19th century, failing to sleep through the night was labeled as insomnia and became stigmatized.

Scientific Findings on Individual Sleep Needs

Numerous studies have been conducted to determine the best amount of sleep for individuals. In 2015, the American Academy of Sleep Medicine (AASM) and the Sleep Research Society (SRS) recommended that adults sleep for 7 or more hours each night regularly to promote overall health.

The study found that:

• Sleeping fewer than 7 hours per night can cause poor health outcomes, such as weight gain, obesity, diabetes, hypertension, heart disease, stroke, depression, and an increased risk of death. Researchers also associated lower amounts of sleep with impaired immune function, increased pain, poor performance, and a higher risk of accidents.
• Regularly sleeping more than 9 hours per night was appropriate for young people, those recovering from sleep debt, or those with illnesses. The study didn’t find associated health risks with sleeping more than 9 hours.

How to Determine Your Optimal Sleep Duration

Our nightly sleep cycle is influenced by our circadian rhythm a 24 hour internal process that is influenced by factors such as sunlight and temperature. We cycle through five sleep stages each night, but not always in a cyclical pattern.

Non REM sleep occurs first: we drift off to sleep during stage one, fall into light sleep during stage two, reach slow wave sleep in stage three, and reach deep sleep in stage four. Before reaching stage five, we cycle back through the first three stages in about 90 minutes. Eventually, we enter stage five REM sleep and dreaming begins. Most people experience 4 6 sleep cycles each night.

With our sleep cycle defined, we can determine how much sleep we need to wake up briefly after each 90 minute cycle and feel refreshed in the morning. To do so, first decide what time you want to wake up, then start counting back. For example, if you want to wake up at 7 a.m., you need to go to bed at:

• 10 p.m. (for six cycles and nine hours of sleep)
• 11:30 p.m. (for five cycles and 7 1/2 hours of sleep)
• 1 a.m. (for four cycles and six hours of sleep)

If you’re unsure when to go to bed to find your ideal wake up time, using a sleep cycle calculator can help schedule your sleep more effectively. These tools estimate ideal bedtimes based on your desired wake up time and typical sleep cycle length.

• Sleep Calculator
• Sleepopolis Sleep Time Calculator
• Sleep Foundation Sleep Calculator

Sleep Myth #2: “If You Can’t Sleep, Stay in Bed Until You Do”

When our circadian rhythm is set properly, getting ready to or going to bed signals the brain that it’s time to sleep. Staying in bed while struggling to sleep does just the opposite it links the bed with restlessness.

Sleep deprivation occurs when we fail to get enough quality, restorative sleep. The effects of sleep deprivation can lead to insomnia and cause damage to both our physical and mental health, including:

Physical Health

• Increased Risk of Chronic Conditions: Chronic sleep deprivation has been linked to an increased risk of obesity, diabetes, cardiovascular disease, and hypertension.
• Weakened Immune System: Inadequate quality sleep can compromise the immune system, increasing your susceptibility to infections and illnesses.
• Impaired Motor Function: Sleep insufficiency impairs coordination, reaction time, and motor skills, increasing the risk of accidents and injuries.
• Hormonal Imbalances: Sleep deprivation disrupts the balance of hormones in the body, which can lead to increased appetite, weight gain, and hormonal disorders.

Mental Health

• Mood Disorders: Sleep deprivation is associated with a higher risk of mood disorders, including depression and anxiety.
• Cognitive Impairment: Lack of sleep impairs cognitive function, leading to difficulties with memory, attention, problem solving, and decision making.
• Reduced Emotional Well Being: Sleep deprivation can intensify negative emotions, diminish emotional resilience, and impair social connections.
• Increased Risk of Mental Health Disorders: Chronic sleep deprivation has been linked to an increased risk of schizophrenia and bipolar disorder, among other mental health conditions.

Expert Recommendations for Sleeplessness

First, experts recommend getting out of bed when you spend longer than 20 minutes trying to fall asleep. Do relaxing activities until you feel sleepy again, such as gentle stretching or yoga, guided meditation, deep breathing, journaling, or listening to music.

You can nip sleeplessness in the bud by incorporating healthy sleep habits into a bedtime routine to help set the stage for restorative sleep. A few ways to prepare your mind and body for quality sleep include stimulus control therapy practices such as:

• Maintaining a consistent sleep schedule: Go to bed and wake up at the same time every day, even on the weekends. This helps regulate your body’s internal clock and promotes better sleep.
• Creating a sleep friendly environment: Turn your bedroom into a sleep oasis. Make sure it’s calm, dark, quiet, and at a cool yet comfortable temperature to set the mood for sleep and signal to your body that it’s time for rest.
• Practicing relaxation techniques: Wind down before bed with calming activities such as reading, taking a warm bath, or meditating.

When to Seek Professional Help

If you experience frequent nights of sleeplessness or are continually sleepy during the day, it might be time to seek medical attention. While stimulus control therapy has been successful in patients who experience sleep deprivation, cognitive behavioral therapy for insomnia (CBTI) further explores your relationship with sleep. 

CBTI is an educational tool that aims to help you understand sleep and encourages changes to sleep related behaviors and thought processes through:

• Stimulus Control
• Sleep Restrictions
• Relaxation Techniques
• Cognitive Therapy

Sleep Myth #3: “You Can Catch Up on Sleep on Weekends”

Almost half of American adults believe we can catch up on sleep over the weekend. However, this is incorrect. Sleeping less than the recommended amount during the week causes sleep deprivation, which builds sleep debt. Sleeping more on weekends does not repay this debt.

Scientific Findings on Irregular Sleep Schedules

Countless studies have concluded that a number of medical conditions can be attributed to irregular sleep schedules. A few prominent studies include:

• A 2019 study published in the National Institutes of Health MedlinePlus magazine concluded that irregular sleep patterns, such as catching up on the weekend, negatively affect metabolic function and increase the risk of chronic diseases, such as diabetes.
• In 2021, Michigan Medical found that irregular sleep increases depression risk, and staying up late or waking early worsens mood.
• A 2024 study published in Sleep determined that people with irregular sleep patterns have an increased risk of premature mortality. Researchers found that sleep regularity is a stronger predictor of mortality risk than sleep duration.

How to Get Regular Sleep

While sleeping more on weekends may lessen short term drowsiness, long term sleep deprivation remains a concern. Use these tips to reduce the risk of ongoing sleep deprivation:

• Go to bed and wake up at a consistent time every day even on weekends, holidays, and vacations.
• Take short 15 20 minute naps late in the morning or in the afternoon.
• Keep a journal to record your sleep patterns.
• Prioritize your relationship with sleep.

Sleep Myth #4: “Older Adults Need Less Sleep”

Have you ever wondered why an older adult in your life wakes up at the crack of dawn? Becoming an early riser might not be a choice. As we age, our sleep can be affected by:

• Shifting Sleep Patterns: Our circadian rhythm can advance as we age, making us want to sleep and wake earlier. Changes in our progression through sleep stages spending more time in deep sleep and less in lighter stages disrupt our sleep cycles.
• Chronic Health Conditions: Older adults with dementia, Parkinson’s disease, anxiety, chronic pain, diabetes, or heart disease are more likely to experience changes in their sleep patterns that result in poor quality or less sleep.
• Hormonal Fluctuations: Older adults may experience a decrease in the sleep hormone melatonin, which interferes with the circadian rhythm. Changes to the hormones cortisol, testosterone, estrogen, and progesterone can also disrupt sleep.
• Lifestyle Changes: Mobility issues or chronic illnesses can reduce sunlight exposure, which is essential for healthy sleep. Routine adjustments, such as less physical activity or fewer social interactions, can also disrupt circadian rhythms and sleep patterns.

The National Institute on Aging says that older adults need 7 to 9 hours of sleep each night and recommends that those who don’t sleep well, always feel sleepy, or struggle to get enough sleep at night contact a healthcare provider.

Sleep Advice Explained for Older Adults

Small changes can greatly impact our sleep quality and duration as we age. Try these recommendations to help improve your sleep:

• Talk with a healthcare provider about underlying health issues that might affect your sleep.
• Establish a sleep schedule with a consistent wake up and bedtime, and implement a relaxing bedtime routine.
• Get sunlight in the morning to help regulate your sleep wake cycle.
• Exercise for at least 30 minutes each day to help you fall asleep more easily and improve sleep quality.
• Block all light and noise from your bedroom, and set the thermostat to 65 70°F while you sleep.
• Stop using devices with screens at least an hour before bedtime. Blue light from devices such as phones and tablets can disrupt quality sleep.
• Avoid caffeine, alcohol, and nicotine an hour or two before bedtime. Substances such as these can stimulate the brain, causing disrupted sleep.

Sleep Myth #5: “Snoring Is Harmless”

A recent survey conducted by the Better Sleep Council found that 40% of U.S. adults say their partner’s snoring causes poor sleep.

For those of us who snore or live with a loved one who does snoring can be a bigger issue than losing sleep. While occasional snoring is considered harmless, very loud or frequent snoring can be a sign of sleep apnea, a serious health condition.

Snoring occurs when excess airflow moves through the nose and throat, causing the nasal tissues to vibrate and produce a rumbling sound. Occasional snoring can be caused by a stuffy nose, large tonsils or tongue, a soft palate, alcohol, or certain medications.

Sleep apnea causes the snorer to stop breathing for a few seconds or even minutes. They may also pause breathing several times an hour, which disrupts the sleep cycle, leading to frequent wake ups or halting the cycle in stages one or two. When that happens, the snorer never reaches the necessary deep and REM sleep stages.

What to Do About Snoring

​Anyone who snores loudly or frequently should consult a healthcare provider. Sleep apnea can cause excessive daytime drowsiness and, if left untreated, can lead to an increased risk for high blood pressure, stroke, or diabetes.

If a physician or sleep specialist determines that snoring is not caused by sleep apnea, try these tips to alleviate snoring:

• Use a humidifier in the bedroom.
• Take a hot, steamy shower before bed.
• Lubricate your nasal passages with sesame oil or ghee (clarified butter).
• Sleep on your side.
• Drink peppermint, chamomile, or turmeric tea before bedtime.

Sleep Facts vs Myths Uncovered

By challenging these common myths and embracing the science of sleep, you’re taking an empowering step toward better health, sharper focus, and more energized days. 

Remember: good sleep isn’t about following popular advice, but about understanding your body and making choices rooted in evidence. Prioritize your sleep, trust the facts, and you’ll lay the foundation for a happier, healthier life one restful night at a time.