Optimal Sleep and Wake Times According to Traditional Chinese Medicine - Traditional Chinese Medicine

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In Traditional Chinese Medicine, the timing of sleep and wakefulness is believed to be closely related to the body's natural rhythms and the flow of Qi (vital energy). It is generally recommended to go to


Hello, Doctor: Recently, I came across some reports mentioning that some people intentionally choose to sleep between 8 to 9 PM and wake up around 4 to 5 AM.
I would like to ask if such a schedule is appropriate according to Traditional Chinese Medicine (TCM).
Additionally, is there a recommended sleeping and waking time in TCM that one can refer to or follow? Thank you!

Yulin, 30~39 year old female. Ask Date: 2020/10/27

Dr. Yan Sumei reply Traditional Chinese Medicine


Dear online friend Yulin, hello! According to Traditional Chinese Medicine's 12-hour health regimen, it is recommended to go to bed before the Zi hour (11:00 PM - 1:00 AM), which means going to bed between 10:00 and 11:00 PM.
It is also advised to wake up during the Mao hour (5:00 AM - 7:00 AM), ideally around 5:00 to 6:00 AM.
Wishing you health and safety! Sincerely, Yan Sumei, Department of Traditional Chinese Medicine, Nantou Hospital.

Reply Date: 2020/10/27

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In Traditional Chinese Medicine (TCM), the concept of optimal sleep and wake times is closely tied to the body's natural rhythms and the flow of Qi (vital energy) throughout the day. TCM emphasizes the importance of aligning one's lifestyle with these natural cycles to promote health and well-being.
According to TCM, the body operates on a 24-hour cycle known as the "circadian rhythm," which is influenced by the movement of the sun and the changing of the seasons. Each organ system has a specific time during which it is most active and capable of healing. For example, the liver is most active between 1 AM and 3 AM, while the lungs are at their peak from 3 AM to 5 AM. This means that getting adequate sleep during these hours is crucial for the optimal functioning of these organs.

The recommended sleep time in TCM generally aligns with the natural cycle of the sun. It is often suggested that individuals should aim to go to bed between 10 PM and 11 PM and wake up around 5 AM to 7 AM. This schedule allows for a full night's rest during the hours when the body is naturally inclined to heal and rejuvenate. Sleeping during these hours supports the liver's detoxification processes and the body's overall restorative functions.

If someone chooses to sleep at 8 PM and wake up at 4 AM, they are likely getting a sufficient amount of sleep (approximately 8 hours), which is beneficial. However, it is essential to consider the quality of that sleep. TCM practitioners would assess whether the individual feels rested and rejuvenated upon waking. If they experience frequent awakenings, difficulty falling back asleep, or feel fatigued during the day, it may indicate an imbalance in their Qi or other underlying health issues.

In addition to sleep timing, TCM also emphasizes the importance of creating a conducive sleep environment and establishing a calming bedtime routine. This may include practices such as meditation, gentle stretching, or consuming herbal teas that promote relaxation, such as chamomile or passionflower. Avoiding stimulants like caffeine and electronic screens before bedtime is also recommended to enhance sleep quality.

Furthermore, TCM recognizes that individual needs may vary based on one's constitution, lifestyle, and health conditions. Therefore, it is advisable for individuals to consult with a qualified TCM practitioner who can provide personalized recommendations based on their specific circumstances. This may involve dietary adjustments, herbal remedies, acupuncture, or lifestyle changes to support better sleep and overall health.

In conclusion, while sleeping from 8 PM to 4 AM can be appropriate according to TCM principles, the key is to ensure that the individual feels rested and energized upon waking. Aligning sleep patterns with the body's natural rhythms, creating a calming bedtime routine, and addressing any underlying health issues are essential steps for achieving optimal sleep and well-being in the context of Traditional Chinese Medicine.

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