Difficulty falling asleep, staying asleep, or waking without feeling rested is one of the most common frustrations adults report. Standard sleep-hygiene advice — keep a schedule, dim the lights, avoid screens — is useful but incomplete. Traditional Chinese Medicine (TCM) approaches sleep differently: it treats restful sleep not as an isolated behavior but as a reflection of the body's internal balance. On this page we walk through what modern research says about diet and sleep, the safety points to keep in mind, and the classical TCM patterns and food-therapy recipes that have been used for centuries to support restful sleep.
Research into diet and sleep has grown rapidly, and the overall picture is that the two are closely linked — though most findings are associations rather than proof of cause and effect.
A 2025 systematic review and meta-analysis published in Sleep Medicine Reviews pooled 328,493 participants and found that sufficient sleep duration, good sleep quality, and an earlier chronotype were each associated with higher odds of adhering to a Mediterranean-style diet (PMID: 40081182). The authors describe the relationship as bidirectional: how you sleep may shape what you eat, and what you eat may shape how you sleep.
On the intervention side, a 2025 meta-analysis of 11 randomized controlled trials (637 adults) reported that nutritional interventions significantly improved sleep quality compared with control (OR 2.52, 95% CI 1.57–4.03), with saffron supplementation showing the largest individual effect (PMID: 41120739). Earlier work has explored whether carbohydrate intake influences how quickly people fall asleep (PMID: 33919698) and how overall dietary patterns relate to insomnia symptoms (PMID: 38714136).
Taken together, this literature suggests diet may be one modifiable factor in supporting restful sleep — but it is not a substitute for medical evaluation when sleep problems are persistent.
The herbs mentioned below — including jujube seed (Suan Zao Ren), licorice root (Gan Cao), and donkey-hide gelatin (Ejiao) — are used in traditional recipes and are generally considered safe in culinary amounts. However, licorice root can raise blood pressure and may interact with certain medications; jujube seed may enhance the effect of sedatives; and donkey-hide gelatin is an animal product that is not suitable for everyone. If you are pregnant, nursing, taking prescription medication (especially for blood pressure, blood sugar, or sleep), or have a chronic health concern, speak with a qualified healthcare provider before making significant dietary changes.
In Traditional Chinese Medicine, sleep is governed by the Heart, which houses the Shen (spirit), and depends on the harmonious interaction of the Liver, Spleen, and Kidneys. Difficulty sleeping is therefore understood not as a single illness but as a pattern of imbalance — and the approach is tailored to which pattern is present.
In TCM, difficulty sleeping is differentiated into several patterns, each with a treatment principle and a classical herbal formula:
Treatment principle: Soothe the Liver and Drain Heat, Settle the Heart and Quiet the Spirit
Formula: Longdan Xiegan Tang (Gentiana Decoction to Drain the Liver) — from Yi Fang Ji Jie
Treatment principle: Clear and Resolve Phlegm-Heat, Harmonize the Middle and Quiet the Spirit
Formula: Huanglian Wendan Tang (Coptis Gallbladder-Warming Decoction) — from Liu Yin Tiao Bian
Treatment principle: Supplement the Heart and Spleen, Nourish Blood and Quiet the Spirit
Formula: Guipi Tang (Restore the Spleen Decoction) — from Formulas to Aid the Living
Treatment principle: Enrich Yin and Subdue Fire, Restore Heart-Kidney Interaction
Formula: Liuwei Dihuang Wan (Six-Ingredient Rehmannia Pill) — from Key to Therapeutics of Children's Diseases; Jiaotai Wan (Heart-Kidney Communication Pill)
Treatment principle: Boost Qi and Settle Fright, Quiet the Spirit and Settle the Mind
Formula: Anshen Dingzhi Wan (Calm the Spirit and Settle the Will Pill) — from Yi Xue Xin Wu; Suanzaoren Tang (Sour Jujube Decoction)
These formulas are for reference under TCM syndrome differentiation and should only be used under the guidance of a qualified practitioner.
Several of these traditional formulas have been examined in modern clinical research. A 2024 meta-analysis of 26 randomized controlled trials found that East Asian herbal medicine — including Suan Zao Ren Tang and related formulas — significantly improved sleep quality, reduced sleep latency, and increased total sleep time in menopausal insomnia (PMID: 39175534). A 2025 network meta-analysis of 75 randomized trials compared multiple Chinese herbal formulas for insomnia and reported overall efficacy with fewer side effects than benzodiazepines (PMID: 40826721). A 2024 review mapping global clinical guidelines found Suan Zao Ren Tang and Gui Pi Tang among the most consistently recommended formulas (PMID: 38122913).
At the single-herb level, jujube seed (Suan Zao Ren) has the most direct evidence. A 2021 randomized, placebo-controlled crossover trial found the seed extract significantly improved sleep onset latency and sleep efficiency in adults with insomnia, with excellent tolerability (PMID: 33385511). A 2020 systematic review and meta-analysis of jujube-seed-based formulas reported significant improvements in sleep quality, total sleep time, and reduced sleep disturbances (PMID: 32045853).
Food therapy is the gentler, everyday counterpart to herbal formulas. The following preparations come from classical TCM dietary literature and use food-grade ingredients to support restful sleep. As with all traditional recipes, they are offered for reference and should be used under the guidance of a qualified practitioner.
Suanzaoren (jujube seed), which appears in several recipes above, is the TCM ingredient with the strongest modern research base for supporting sleep (PMID: 33385511, 32045853).
Emerging research suggests diet and sleep are linked in both directions. A 2025 meta-analysis of 328,493 adults found that sufficient sleep duration and good sleep quality were associated with higher adherence to a Mediterranean-style diet (PMID 40081182). Traditional Chinese Medicine has long recommended that the evening meal be light and early, a view broadly consistent with modern findings.
Jujube seed (Suan Zao Ren). A 2021 crossover trial found the seed extract improved sleep onset latency and sleep efficiency compared with placebo in adults with insomnia (PMID 33385511), and a 2020 meta-analysis of jujube-seed formulas reported improvements in sleep quality (PMID 32045853). These findings are suggestive rather than a recommendation to self-treat.
The recipes on this page use food-grade ingredients that are generally recognized as safe in culinary amounts. However, some herbs can interact with medications and individual tolerances vary. If you take prescription medicine, are pregnant or nursing, or have a chronic health concern, speak with a qualified practitioner before making significant dietary changes.
This content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. The traditional recipes and formulas described here reflect cultural and historical practices and are not intended to diagnose, treat, cure, or prevent any disease.