Herbie Murray
Napping in short bursts throughout the day is known as polyphasic sleep. This method of sleeping has gained traction among those who want to increase their productivity by maximising the amount of time spent in REM sleep. While some claim that polyphasic sleep has fuelled great minds, such as those of Leonardo da Vinci and Nikola Tesla, others argue that there is a lack of scientific research supporting these claims. So, does the 20-minute sleep method work?
| Characteristics | Values |
|---|---|
| Sleep method | Polyphasic sleep |
| Sleep duration | 20-minute naps |
| Total sleep time | 2-7 hours |
| Core sleep | 90 minutes to 6 hours |
| Number of naps | Depends on core sleep duration |
| Benefits | More time in REM sleep and slow-wave sleep, improved sleepiness, performance, and self-confidence |
| Drawbacks | Lack of scientific research, potential health consequences, sleep anxiety |
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Polyphasic sleep
There are several popular polyphasic sleep schedules, including:
- Uberman Sleep Schedule: This involves six 20-minute naps spaced evenly throughout the day, totalling two hours of sleep per 24-hour period.
- Everyman Sleep Schedule: This schedule includes three hours of nighttime sleep and three 20-minute naps throughout the day, totalling four hours of sleep per day.
- Dymaxion Sleep Schedule: This involves four 30-minute naps every six hours, totalling two hours of sleep per day.
- Triphasic Sleep Schedule: This schedule includes three short sleep periods after dusk, before dawn, and in the afternoon, providing a total of four to five hours of sleep per day.
While polyphasic sleep has gained popularity, particularly among those seeking to maximise their waking hours, there is limited research on the efficacy of these specific sleep schedules. There is currently no scientific evidence that polyphasic sleep is advantageous or beneficial compared to monophasic or biphasic sleep. In fact, experts warn that not getting the recommended seven to nine hours of sleep per day can have negative health consequences, including cognitive impairment, memory problems, mental health issues, and a higher risk of accidents and chronic conditions.
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Sleep deprivation
There are two main forms of sleep deprivation. The first occurs when an individual stays awake instead of sleeping, while the second occurs when an individual sleeps but does not get quality sleep, causing them to still feel tired when they wake up. Sleep deprivation can be caused by various factors, some harmless, but it can also be a key symptom of certain health conditions. For example, a nighttime breathing disorder called obstructive sleep apnea (OSA) can interrupt sleep and cause sleep deprivation, which in turn makes individuals more susceptible to respiratory infections.
The effects of sleep deprivation are wide-ranging and can impact multiple body systems, organs, and processes. Sleep is necessary for the proper functioning of the central nervous system, and chronic sleep deprivation can disrupt how the body sends and processes information. This can lead to difficulties with concentration, learning, and coordination, as well as an increased risk of accidents. Sleep deprivation can also cause higher pain sensitivity, making individuals feel pain more easily and intensely.
Additionally, sleep deprivation can negatively affect mental abilities and emotional states, leading to mood swings, impatience, compromised decision-making, and decreased creativity. If sleep deprivation continues for an extended period, individuals may experience hallucinations, seeing or hearing things that are not there. It can also trigger mania in people with bipolar mood disorder.
Chronic sleep deprivation has been linked to various health issues, including an increased risk of heart disease, high blood pressure, diabetes, stroke, obesity, and depression. It can also weaken the immune system, making it harder for the body to fight off infections and increasing the likelihood of chronic conditions.
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Sleep hacks
The 20-minute sleep method is a polyphasic sleep schedule that involves a longer "core" sleep of 90 minutes to 6 hours, supplemented by 20-minute naps throughout the day. The total sleep time for this method is between 3 to 7 hours.
There is little clinical evidence to support the benefits of polyphasic sleep. Dr. Alon Avidan, the director of the UCLA Sleep Disorders Center, warns of the health consequences of not getting enough sleep, including cognitive impairment, memory problems, and a higher risk of accidents.
- Napping: Short power naps can be beneficial, but long or irregular naps can negatively affect nighttime sleep. Athletes or those engaging in strenuous physical activity may benefit from napping without it compromising their nighttime sleep quality.
- Sunlight: Spending time in natural sunlight or using artificial bright light devices can improve sleep quality and duration by keeping your circadian rhythm healthy.
- Caffeine: Avoid caffeinated beverages at least 8 hours before bedtime. Caffeine reduces total sleep time and sleep efficiency.
- Mealtime: Avoid heavy meals before bedtime, but also avoid going to bed hungry. Have a light snack if you're hungry.
- Rituals: Develop sleep rituals to signal to your body that it's time to slow down and sleep. This could include listening to relaxing music, reading something soothing, or trying relaxation exercises like deep breathing.
- Temperature: Take a hot bath or shower before bedtime to raise your body temperature. The subsequent drop in body temperature may leave you feeling sleepy.
- Environment: Make sure your bedroom is quiet and comfortable. Use earplugs or white noise if noise is an issue, and consider blackout shades or curtains if light bothers you in the early morning.
- Consistency: Keep consistent sleep and waking times, even on weekends. This helps your body maintain a regular rhythm, which can improve sleep quality.
- Exercise: Refrain from exercising at least 4 hours before bedtime. Regular morning or early afternoon exercise can help promote better sleep without interfering with your sleep cycle.
- Relaxation: Try relaxation techniques such as meditation and visualization to quiet your mind and relax your muscles.
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Sleep environment
The sleep environment is crucial in ensuring that you get a good night's rest. Here are some ways to create an optimal sleep environment:
Light and Darkness:
The human body's sleep-wake cycle is regulated by light and darkness. During the day, natural light helps to promote alertness and suppress the production of melatonin, a hormone that makes you feel sleepy. In the evening, reducing artificial light exposure and creating a dark and tranquil atmosphere can help signal to your body that it's time to wind down and prepare for sleep. Consider using blackout curtains or an eye mask if you need to make your room darker.
Noise and Quiet:
Noise can be a significant distraction when trying to fall asleep. Aim to minimise loud or sudden noises that might disrupt your sleep. If you can't control the noise in your environment, consider using white noise or earplugs to create a quieter and more peaceful atmosphere.
Temperature and Ventilation:
A cool, well-ventilated bedroom is ideal for sleeping. Keep your bedroom well-ventilated to maintain a comfortable temperature. If possible, open a window to let in fresh air or use a fan to circulate the air.
Comfort and Bedding:
Ensure your mattress, pillows, and bedding are comfortable and supportive. Choose bedding that suits the climate and your personal preferences. For example, breathable cotton sheets may be preferable in warmer months, while flannel sheets might be cozier during winter.
Electronics and Screen Time:
The blue light emitted by electronic devices such as smartphones, tablets, and computers can interfere with your sleep. Try to avoid screen time at least an hour before bedtime. If you must use electronic devices, consider using blue light filters or night modes to reduce the impact on your sleep.
Creating a sleep-friendly environment is a crucial step in improving your sleep quality. Experiment with different adjustments to find what works best for you and helps you get the restful sleep you need.
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Sleep disorders
Polyphasic sleep, or sleeping in 20-minute bursts, is a growing trend among those seeking to increase their productivity. While this method may not be for everyone, some people swear by its ability to help them feel more energised and productive. However, it is important to note that sleep is a critical component of physical and mental health, and sleep disorders can significantly impact an individual's quality of life.
One of the most common sleep disorders is insomnia, characterised by difficulty falling asleep or staying asleep. To be diagnosed with insomnia disorder, these sleep difficulties must occur at least three nights a week for at least three months and cause significant distress or problems in daily functioning. Insomnia is often treated with a combination of sleep medications and behavioural techniques, such as cognitive-behavioural therapy.
Other sleep disorders include sleep apnea, a breathing disorder where breathing stops for 10 seconds or more during sleep; restless leg syndrome, involving a tingling sensation in the legs and an urge to move them; and hypersomnia, where individuals cannot stay awake during the day, including narcolepsy, which causes extreme daytime sleepiness. Circadian rhythm disorders are also common, disrupting the sleep-wake cycle and affecting the ability to sleep and wake at the right times.
The treatment for sleep disorders varies depending on the specific disorder. It may include good sleep habits and lifestyle changes, such as improving sleep hygiene, adopting a healthy diet, and exercising. Cognitive-behavioural therapy and relaxation techniques can help reduce anxiety about getting enough sleep. In some cases, medications such as sleeping pills or natural products like melatonin may be recommended for short-term use. It is crucial to consult a healthcare provider before taking any sleep aids.
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Frequently asked questions
The 20-minute sleep method, also known as polyphasic sleep, involves sleeping in short bursts throughout the day instead of one long period of sleep. There are many different polyphasic sleep schedules, but one of the most popular involves a longer "core" sleep ranging from 90 minutes to six hours, supplemented by 20-minute naps.
The effectiveness of the 20-minute sleep method is debated. Some proponents of polyphasic sleep claim that it maximizes the amount of time spent in rapid eye movement (REM) sleep and slow-wave sleep, which are important for dreaming, memory storage, and mood regulation. However, Dr. Alon Avidan, the director of the University of California Los Angeles Sleep Disorders Center, argues that there is a lack of scientific evidence supporting the benefits of polyphasic sleep and that sleep fragmentation can lead to health issues.
To fall asleep quickly using the 20-minute sleep method, it is recommended to start by lying down in a relaxed position with your eyes closed. Focus on relaxing each part of your body, from your forehead to your toes, and clear your mind by visualizing a calming scene or repeating "don't think" for 10 seconds if other thoughts intrude.
