Acupuncture for Sleep Disorders: What Clinical Research Shows About Insomnia Relief
topic: acupuncture for sleep disorders
condition: insomnia disorder; chronic insomnia disorder; sleep-quality impairment
primary measures: Pittsburgh Sleep Quality Index (PSQI); Insomnia Severity Index (ISI); polysomnography; actigraphy
evidence reviewed: randomized controlled trials; systematic reviews; meta-analyses
updated: 2026-08-28
Insomnia is defined by difficulty initiating sleep, maintaining sleep, or waking earlier than intended despite adequate opportunity for sleep. Chronic insomnia is generally present at least three nights per week for three months or longer and is associated with daytime impairment.
Clinical research on acupuncture for sleep disorders has expanded substantially since early systematic reviews published in the 2000s. Current evidence indicates that acupuncture produces measurable improvements in subjective sleep quality, particularly PSQI scores. Objective sleep findings, including sleep efficiency and wake after sleep onset, also show benefit in some analyses. Endocrine findings involving melatonin and cortisol are emerging but remain heterogeneous.
bottom-line finding: Acupuncture has shown modest improvements in insomnia severity and self-reported sleep quality compared with sham acupuncture, usual care, or medication-only controls. Evidence quality varies from low to moderate depending on the outcome.
PSQI outcomes in systematic reviews and meta-analyses
The PSQI is a validated seven-component questionnaire measuring sleep quality over the previous month. Scores range from 0 to 21, with higher scores indicating poorer sleep. A reduction of approximately three points is commonly interpreted as clinically meaningful, although the threshold is not universal across all populations.
A 2019 systematic review and meta-analysis published in the Journal of Alternative and Complementary Medicine analyzed 73 randomized controlled trials involving 5,533 participants with primary insomnia. The review concluded that acupuncture produced greater PSQI improvement than no treatment:
- acupuncture versus no treatment: PSQI mean difference (MD) −5.58
- acupuncture plus medication versus medication alone: PSQI MD −3.17
- acupuncture versus estazolam: favorable results for acupuncture on several sleep measures
- adverse events versus Western medication: lower event frequency with acupuncture, although evidence quality was low to very low
The authors identified substantial limitations, including inconsistent blinding, variable acupuncture protocols, small sample sizes, and possible publication bias.
A 2025 systematic review from researchers at Tianjin University of Traditional Chinese Medicine evaluated acupuncture specifically for chronic insomnia disorder. The review included 10 studies and 757 participants. Compared with sham acupuncture, acupuncture was associated with:
| outcome | pooled result |
|---|---|
| PSQI | MD −2.60 |
| ISI | MD −2.04 |
| sleep efficiency | MD +3.62 percentage points |
| wake after sleep onset | MD −18.53 minutes |
| total sleep time | not statistically significant |
The review concluded that subjective sleep quality improved consistently, while evidence for total sleep time remained insufficient.
Findings from randomized controlled trials
A 2017 randomized controlled trial published in Sleep Medicine enrolled 72 adults with primary insomnia. Participants received acupuncture or sham acupuncture three times per week for four weeks. The study used the ISI, actigraphy, sleep-efficiency measures, and psychological-health questionnaires.
The acupuncture group demonstrated significantly greater improvements in ISI scores at two and four weeks after treatment and during follow-up. Sleep efficiency, total sleep time, and depression scores also improved. The trial was registered with the Chinese Clinical Trial Registry.
A 2020 multicenter, assessor-blinded randomized controlled trial published in Nature and Science of Sleep evaluated electroacupuncture in adults meeting diagnostic criteria for insomnia disorder. The Korean trial compared electroacupuncture, sham electroacupuncture, and usual care over a four-week period using 10 treatment sessions.
The electroacupuncture group showed greater improvement than usual care in:
- ISI scores
- PSQI scores
- sleep-diary variables
- anxiety and depressive symptoms
- health-related quality-of-life measures
No serious adverse effects were reported. Salivary melatonin and cortisol did not change significantly, indicating that clinical sleep improvement can occur without detectable changes in these salivary biomarkers.
A 2021 randomized trial conducted by investigators at The Hong Kong Polytechnic University and The University of Hong Kong included 140 adults with insomnia disorder. Participants received two 30-minute sessions per week for four weeks. The semi-individualized acupuncture protocol included fixed and symptom-selected points.
The study found:
- increased sleep time measured by both sleep diary and actigraphy one week after treatment
- a higher proportion of participants reaching sleep efficiency of at least 85% at five-week follow-up
- no statistically significant difference from sham acupuncture for the primary sleep-efficiency outcome
- no significant difference in oxidative-stress markers
This trial demonstrates the importance of distinguishing between specific acupuncture effects and nonspecific effects associated with clinical attention, treatment expectations, relaxation, and the therapeutic setting.
Objective sleep quality: sleep efficiency, latency, and awakenings
Objective sleep outcomes are measured using polysomnography, actigraphy, or validated sleep diaries. These methods assess total sleep time, sleep onset latency, sleep efficiency, and wake after sleep onset.
The 2025 Frontiers in Neurology meta-analysis concluded that acupuncture improved sleep efficiency and reduced wake after sleep onset compared with sham acupuncture. Total sleep time did not reach statistical significance. This distinction is clinically relevant because insomnia often involves a mismatch between perceived sleep and recorded sleep.
A 2026 systematic review and meta-analysis published in Frontiers in Medicine synthesized 12 randomized controlled trials involving 942 participants. The authors were affiliated with Sir Run Run Hospital and Nanjing Medical University, among other institutions. The pooled results showed:
- PSQI: MD −3.39 compared with control conditions
- sleep efficiency: MD +6.40 percentage points
- total sleep time: increased in the overall analysis, with substantial heterogeneity
- sleep onset latency and wake after sleep onset: improved in selected subgroups
The authors concluded that acupuncture improved subjective sleep quality and sleep continuity. They also identified treatment intensity and insomnia subtype as potential contributors to different outcomes.
Melatonin, cortisol, and endocrine effects
Insomnia has been associated with altered circadian signaling and hypothalamic–pituitary–adrenal axis activity. Melatonin supports circadian sleep timing, while cortisol is a major stress-related hormone.
The 2026 Frontiers in Medicine meta-analysis reported:
- higher serum melatonin with acupuncture-based interventions
- a more consistent serum-melatonin effect in electroacupuncture subgroups
- no significant difference in salivary melatonin
- lower salivary cortisol in the limited number of trials reporting that outcome
The serum melatonin analysis had very high heterogeneity. Differences in sampling time, assay method, treatment protocol, insomnia subtype, and comparator treatment limit interpretation.
Several individual trials have reported increased plasma or serum melatonin and reduced cortisol after acupuncture. Other well-designed trials have found no significant endocrine change. Current research therefore supports a possible endocrine effect, but it does not establish acupuncture as a reliable method for correcting melatonin or cortisol abnormalities.
evidence status: Sleep-quality improvements are more consistently shown than endocrine changes. Melatonin and cortisol findings remain exploratory and should not be used as standalone treatment targets.
Treatment dosage used in clinical research
Acupuncture dosage is not standardized. Published trials typically use the following parameters:
- frequency: two to three sessions per week
- course duration: four to eight weeks
- total sessions: approximately 8–24
- needle retention: 20–30 minutes
- common research duration: 30 minutes per session
- techniques: manual acupuncture, electroacupuncture, auricular acupuncture, or combined protocols
The 2025 chronic-insomnia review included protocols ranging from six to 25 sessions. A 2025 randomized controlled trial published in Nature and Science of Sleep used 10 sessions delivered three times weekly, with 20-minute needle retention. The trial compared a heart-liver pattern-based protocol with another active acupuncture protocol; both groups improved, and between-group differences were limited.
These parameters describe research designs, not universal prescriptions. Clinical frequency and point selection require assessment of insomnia duration, medications, comorbid pain, menopause-related symptoms, anxiety, inflammatory conditions, and other health factors.
Safety profile
Acupuncture was generally well tolerated in insomnia trials. Reported adverse events were usually mild and transient:
- local pain or tenderness
- minor bleeding
- bruising or hematoma
- temporary dizziness
- headache
- short-term numbness
In the 2021 Hong Kong trial, needling-site pain occurred in 12.9% of participants, bruising in 9.3%, and dizziness in 5.0%. No serious adverse event was reported. A 2025 meta-analysis of chronic insomnia trials also reported mild, recoverable events and no consistent signal of serious treatment-related harm.
Safety depends on sterile, single-use needles, appropriate anatomical technique, practitioner training, and medical screening. Additional evaluation is required for individuals taking anticoagulants, those with bleeding disorders, pregnancy, active infection near a treatment site, implanted electrical devices when electroacupuncture is considered, or undiagnosed sleep apnea.
Persistent snoring, witnessed apneas, nocturnal choking, severe daytime sleepiness, parasomnias, or symptoms suggestive of restless legs syndrome require sleep-medicine assessment. Acupuncture should not replace diagnostic evaluation or evidence-based treatment for an underlying sleep disorder.
Clinical interpretation
The current evidence supports acupuncture as a complementary option for insomnia-related sleep-quality impairment. The most reproducible outcome is a reduction in subjective PSQI and ISI scores. Objective sleep improvements are present in selected analyses but remain less certain because of protocol variation and limited sample sizes.
EnerQi Wellness uses individualized traditional Chinese medicine assessment rather than a fixed insomnia protocol. Relevant information may include sleep timing, nighttime waking patterns, stress physiology, pain, hormonal transition, medication use, digestion, and daily routine. Information about the company’s acupuncture approach is available through What Is Acupuncture, Treatments, and The Root Cause Method.
References
Cao HJ, Yu ML, Wang LQ, et al. “Acupuncture for primary insomnia: an updated systematic review of randomized controlled trials.” Journal of Alternative and Complementary Medicine. 2019;25(5):451–474. PubMed
Yu Y, Li X, Zhu Z, et al. “Acupuncture for chronic insomnia disorder: a systematic review with meta-analysis and trial sequential analysis.” Frontiers in Neurology. 2025;16:1541276. Full text
Hu Y, Liu Y, Li W, et al. “Sleep and endocrine effects of acupuncture for insomnia: a systematic review and meta-analysis of randomized controlled trials.” Frontiers in Medicine. 2026;13:1807826. Full text
Yin X, Gou M, Xu J, et al. “Efficacy and safety of acupuncture treatment on primary insomnia: a randomized controlled trial.” Sleep Medicine. 2017;37:193–200. PubMed
Lee B, Kim BK, Kim HJ, et al. “Efficacy and safety of electroacupuncture for insomnia disorder: a multicenter, randomized, assessor-blinded, controlled trial.” Nature and Science of Sleep. 2020;12:1145–1159. Full text
Yeung WF, Yu BYM, Yuen JWM, et al. “Semi-individualized acupuncture for insomnia disorder and oxidative stress: a randomized, double-blind, sham-controlled trial.” Nature and Science of Sleep. 2021;13:1195–1207. Full text
Ang L, Lee MS, Choi TY, et al. “Acupuncture for insomnia.” Cochrane Database of Systematic Reviews. 2025;7:CD015974. PubMed
Zhao FY, Spencer SJ, Kennedy GA, et al. “Acupuncture for primary insomnia: effectiveness, safety, mechanisms and recommendations for clinical practice.” Sleep Medicine Reviews. 2024;74:101892. PubMed