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Bottom line
Cognitive behavioural therapy for insomnia (CBT-I) is an effective treatment to improve sleep quality in people with chronic pain post-treatment, but the benefit weakens over time and effects on pain, quality of life and mood are limited; sleep hygiene alone is not effective, and most other interventions lack sufficient evidence.
Moderate evidencePublished
Evidence hierarchy
Study participants
Adults aged 18 and older with chronic non-cancer pain (conditions including fibromyalgia, osteoarthritis, rheumatoid arthritis, back/neck pain, multiple sclerosis and migraine)
Full research — for clinicians and curious readers
Study Summary
This systematic review and meta-analysis evaluated non-pharmacological, non-invasive interventions to improve sleep in adults with chronic non-cancer pain. Across 42 randomised trials involving 3346 participants, cognitive behavioural therapy for insomnia (CBT-I) showed the strongest evidence, improving sleep quality post-treatment compared with controls (SMD -1.23, 95% CI -1.76 to -0.70). The benefit was reduced but persisted at 3 and 6 months, while improvements in pain, anxiety and depression were generally not sustained long-term. Sleep hygiene alone did not improve sleep, and many other interventions had too few studies to draw conclusions.
Key Findings
| Finding | Detail | Impact |
|---|---|---|
| CBT-I improved sleep quality after treatment | In 9 studies with 385 participants, CBT-I improved questionnaire-assessed sleep quality versus untreated controls post-treatment, SMD -1.23 (95% CI -1.76 to -0.70; p<0.00001), though heterogeneity was high (I2 80%). In 3 studies at low risk of bias the effect was only slightly reduced, SMD -1.01 (95% CI -1.79 to -0.22; p=0.01). | High |
| Sleep benefit weakened over time but still favoured CBT-I | The difference between groups was lower at 3 and 6 months after treatment but still favoured CBT-I over control. Most studies had follow-up of 3 months or less; only 9 studies reported 6-month and 2 studies reported 12-month outcomes. | Medium |
| Pain, anxiety and depression reductions after CBT-I were modest and not durable | Pain was reduced post-treatment (9 studies, 370 people, SMD -0.24, 95% CI -0.45 to -0.03; p=0.02) but not in the 3 low-risk-of-bias studies and not sustained at 3 months or longer. Anxiety (SMD -0.54, 95% CI -1.01 to -0.06; p=0.03) and depression (SMD -0.57, 95% CI -1.05 to -0.08; p=0.08) showed post-treatment benefit, but longer-term evidence was lacking. | Medium |
| CBT-I outperformed sleep hygiene; sleep hygiene alone showed no benefit | When the study at unclear risk of bias was excluded, CBT-I improved sleep quality versus sleep hygiene (SMD -0.53, 95% CI -0.94 to -0.12; p=0.01) and pain in the 2 low-risk studies (SMD -0.85, 95% CI -1.26 to -0.43; p<0.0001). Sleep hygiene compared with untreated controls showed no benefit for sleep quality or pain. | High |
| Other interventions had insufficient evidence to draw conclusions | Mindfulness showed a small post-treatment sleep-quality benefit (SMD -0.41, 95% CI -0.72 to -0.11; p=0.008), while exercise, Tai Ji Quan, hydrotherapy, manual therapy, acupressure, reflexology, bright light, transcranial stimulation and mattress interventions were each evaluated in small numbers of studies with insufficient evidence. | Medium |
| Adverse events were rarely and inconsistently reported | Only 9 of 42 studies reported adverse-event data, and no serious adverse events were reported. Reported events were minor (e.g., rash from wearing an actigraph, tenderness at a testing site, pain exacerbation, chlorine hypersensitivity). | Low |
Strengths
- Robust, systematic methodology following Cochrane guidance with PROSPERO pre-registration and PRISMA reporting
- Comprehensive search across five databases with no language restrictions and dual independent screening and data extraction
- Large evidence base of 42 RCTs (3346 participants) spanning multiple chronic pain conditions
- Risk-of-bias sensitivity analyses applied, with effects confirmed in low-risk-of-bias subsets for the main CBT-I finding
Limitations
- High statistical heterogeneity in several meta-analyses (e.g., I2 80% for the main CBT-I sleep-quality analysis)
- Many interventions were evaluated in only small numbers of studies, limiting opportunity for meta-analysis and firm conclusions
- Highly heterogeneous secondary outcome measures (especially for quality of life and psychological wellbeing) limited comparison between studies
- Most trials had follow-up of 3 months or less, so longer-term effectiveness remains unclear
- The chronic pain population was clinically heterogeneous, and adverse-event reporting was inconsistent (only 9 of 42 studies)
Key Takeaways for Patients
What This Means for You
About two thirds of people with chronic pain report problems sleeping, and sleep and pain influence each other in both directions.
Cognitive behavioural therapy for insomnia (CBT-I) has the strongest evidence for improving sleep quality in people with chronic pain, at least in the short term.
The sleep benefit tends to weaken over the following months, and improvements in pain and mood were modest and often not lasting in this review.
Sleep hygiene advice on its own did not improve sleep in these studies and appeared less effective than CBT-I.
Many other approaches (such as mindfulness, exercise, hydrotherapy and manual therapy) have been tried but were studied too little to know if they reliably help sleep.
Read the Full Paper
Access the complete peer-reviewed study from BMC Musculoskeletal Disorders