Herbie Murray
Sleep is essential for our health and mental well-being. While you may be able to train yourself to need less sleep, it is not recommended as it can lead to fatigue and serious health issues. The amount of sleep a person needs depends on their age and physical activity, but most healthy adults should aim for 7-9 hours each night. If you want to make the most of your waking hours, focus on improving your sleep quality and making better use of your time. Some tips to optimize your sleep include exercising in the afternoon, avoiding large meals late in the evening, and maintaining a regular sleep schedule.
| Characteristics | Values |
|---|---|
| Number of hours of sleep needed | 7-9 hours for healthy adults |
| Sleep less than 7 hours | Possible but may suffer from physical, emotional, and cognitive consequences of fatigue |
| Sleep more than 9 hours | May be required when recovering from illness or injury |
| Sleep less than 4 hours | May lead to chronic sleep deprivation and adverse health effects |
| Sleep training techniques | Gradual bedtime changes, exercising in the afternoon, avoiding large meals late in the evening, addressing worries before bed, limiting screen time before sleep, maintaining a regular sleep schedule, getting sun exposure in the morning, taking short naps |
| Benefits of sleep | Brain and body function, memory, hormone regulation, energy replenishment, immune response |
| Impact of sleep deprivation | Fatigue, loss of concentration, lowered immune response, weight gain, increased risk of obesity, diabetes, high blood pressure, cardiovascular disease, impaired cognition, accidents, irritability, memory issues |
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What You'll Learn
Daytime naps can help you sleep less at night
While it is possible to train yourself to sleep less at night, it is important to note that this approach may not work for everyone. Most healthy adults require between seven and nine hours of sleep each night, and sleeping less could lead to health issues. However, if you are feeling sluggish despite getting adequate sleep, incorporating daytime naps into your routine can help you sleep less at night while still maintaining optimal energy levels.
Daytime naps can be beneficial in several ways. Firstly, they can help you catch up on lost sleep, making you feel more refreshed and alert. Secondly, they can improve your memory, mood, and cognitive ability. Thirdly, they can enhance your physical performance and ensure you stay safe, especially when driving. Additionally, in many cultures, napping during the day is a common practice and can help accommodate non-traditional work hours.
To optimize your daytime naps, aim for a duration of 20 to 30 minutes, as longer naps may lead to drowsiness and negatively impact your nighttime sleep. The ideal time for a nap is in the early afternoon, between 1:00 p.m. and 3:00 p.m., when you may experience an "afternoon slump." Napping during this time can boost your energy levels and help you feel more energized for the rest of the day.
It is important to assess why you may be feeling sleepy during the day, especially if you nap regularly. If you are not getting enough sleep at night, focus on improving your nighttime sleep habits first. If you are getting adequate sleep but still feel tired, consult your doctor to assess your sleep quality and rule out any potential sleep disorders.
In conclusion, while daytime naps can be a helpful tool to enhance your daytime energy levels and performance, they should be used in conjunction with a healthy nighttime sleep routine. By optimizing both your nighttime sleep and daytime naps, you can achieve a balance that allows you to sleep less at night while still maintaining overall well-being and alertness.
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Avoid large meals, screens and stress before bed
Avoid large meals, screens, and stress before bed
Eating large meals close to bedtime can negatively impact your sleep quality. Research shows that eating high-calorie meals with large amounts of fat or carbohydrates less than an hour before bedtime can make it take longer to fall asleep. Eating such meals at least four hours before bedtime, on the other hand, can help you fall asleep faster. Eating too close to bedtime can also cause gastroesophageal reflux disease (GERD) or acid reflux, which occurs when stomach contents return up the esophagus.
To avoid the negative impacts of screens on sleep, it is recommended to avoid looking at screens emitting blue light before bed. The blue light from electronic devices such as computers, phones, and TVs can make it difficult to fall asleep or stay asleep. However, some people find that the distraction of watching TV or using their phone before bed helps them relax and fall asleep faster. Reducing screen time before bed may be more effective for those who find that it negatively impacts their sleep.
Stress can also interfere with sleep quality. When you experience stress, your brain triggers a sequence of chemical changes in your body, including elevated levels of cortisol and adrenaline, which can make it difficult to fall asleep. Caffeine consumption can further elevate these stress hormones, so it is recommended to limit caffeine intake, especially before bed. Exercise is a great way to de-stress and has been linked to better sleep, but strenuous exercise too close to bedtime may disrupt sleep for some individuals.
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Exercise in the afternoon to sleep better
Exercise is a great way to improve your sleep quality. It promotes relaxation, reduces anxiety, and normalizes your internal clock. Working out also increases your core body temperature, and when it begins to drop, you feel sleepy. Sigrid Veasey, a professor at the Center for Sleep and Circadian Neurobiology at the University of Pennsylvania's Perelman School of Medicine, recommends exercising in the afternoon. This will raise your body temperature and then cool it down by bedtime, helping you fall asleep more quickly and sleep more deeply through the night.
However, the timing of your workout is crucial. While some people can exercise in the evening without it affecting their sleep, others may find that working out too late in the day interferes with their rest. The key is to listen to your body and choose a workout routine that works for you. Aim to finish your workout at least one hour before bedtime, and if possible, finish at least 90 minutes before you head to bed. This will give your body enough time to wind down.
If you exercise in the evening, it's best to stick to light to moderate-intensity activities. Vigorous workouts should be avoided, as they can stimulate your nervous system and raise your heart rate too much, making it difficult to fall asleep. Examples of moderate-intensity exercises that can help you sleep better include moderate aerobic exercise and active yoga. These exercises increase the amount of slow-wave sleep you get, which refers to deep sleep where the brain and body have a chance to rejuvenate.
While the specific exercise you choose is not as important as the timing, it's still crucial to pick an exercise you enjoy. This will help you stick with your workout routine and reap the benefits of better sleep. Additionally, you don't need to feel like you have to train for a marathon to become a better sleeper. Even a 30-minute walk can make a difference in your sleep quality.
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Sleep more before to sleep less later
Sleep is essential for the body and brain to function at their best. While you may be tempted to train yourself to sleep less, it is important to prioritize quality sleep and ensure you are getting adequate restorative rest. Here are some tips to help you sleep more before, so you can sleep less later:
Maintain a Sleep Diary: Keeping a sleep diary for a week or two can help you understand your sleep patterns and sleep efficiency. Note down the time spent in bed and your sleep duration. If you are spending less than 80% of your time in bed asleep, you may be spending too much time in bed. Gradually push back your bedtime by 15 minutes each night until you reach optimal sleep efficiency, which is 85% or more of your time asleep while in bed.
Improve Sleep Quality: Focus on improving the quality of your sleep to make the most of the hours you sleep. This can include incorporating relaxing activities before bed, such as taking a warm shower or bath, meditation, or reading a book. Avoid blue light exposure from electronic devices before bed, as it suppresses the production of melatonin, the sleep hormone. Instead, engage in meditative movements like yoga, tai chi, or qigong, which combine gentle stretching and breathing exercises to help you relax.
Exercise Regularly: Regular exercise improves sleep quality. However, avoid vigorous exercise just before bedtime as it may delay falling asleep and reduce overall sleep time. Opt for low- or moderate-intensity workouts, and exercise in the afternoon to raise and then cool down your body temperature, aiding in a quicker and deeper sleep.
Manage Stress and Anxiety: Stress and anxiety can contribute to sleep-maintenance insomnia. Make time to address your worries before bed to prevent sleep disturbances. Cognitive and behavioral techniques, including cognitive behavioral therapy (CBT), can help replace unproductive thoughts with more constructive ones, reducing sleep-related anxiety.
Optimize Your Environment: Maintain a comfortable sleep environment by keeping your bedroom dark, cool, and quiet. Ensure your mattress and pillows are comfortable and supportive. Avoid large meals late in the evening, and limit screen time before bed to improve sleep quality.
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Genetics and age impact sleep requirements
While it is possible to train yourself to need less sleep, it is not advisable. Most adults need between seven and nine hours of sleep per night, and sleeping less could lead to health complications.
The amount of sleep a person needs is influenced by various factors, including genetics and age. Research suggests that the amount of rest we require for physical and mental performance may be up to 80% genetic. Individual differences in sleep requirements and circadian rhythms are likely to be genetically determined, at least in part. For example, genetic factors can make some people more susceptible to the adverse effects of sleep loss, such as an increased risk of insomnia or difficulty coping with shift work.
As we age, our sleep patterns also change. Newborns sleep for 16-20 hours a day, while toddlers need about 11-12 hours. By adolescence, this decreases to around nine hours, and adults through middle age need at least eight hours. Older adults may still require up to eight hours of sleep, but they might struggle to obtain it in one block, experiencing fragmented sleep or insomnia.
In addition to genetics and age, environmental, cultural, and behavioural factors also influence sleep duration and timing. For instance, people living in hot climates often take afternoon siestas, resulting in shorter sleep at night. Similarly, work or school schedules can impact sleep patterns, with some individuals having early bedtimes or wake-up times due to their daily routines.
While the exact number of genes and mutations that influence sleep quality is still unknown, it is clear that sleep plays a crucial role in maintaining our physical and mental health. Lack of sleep can lead to DNA damage and increase the risk of serious health complications. Therefore, it is essential to prioritize sleep and listen to what our bodies need.
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Frequently asked questions
Most healthy adults should aim for between seven and nine hours of sleep per night. However, some people need more than nine hours to feel their best.
While it is possible to train yourself to need less sleep, it is not recommended. Sleeping less than seven hours per night can lead to fatigue, lowered immune response, weight gain, and other health issues. If you want to make the most of your waking hours, try exercising in the afternoon to help you fall asleep faster and sleep more deeply.
To improve your sleep quality, try maintaining a regular bedtime and wake-up time, getting sun exposure in the morning, and avoiding large meals and screen time before bed. If you take naps, stick to short ""power naps" lasting 20-30 minutes.
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