The key finding
A 2026 systematic review examined 12 studies involving 783 patients with chronic obstructive pulmonary disease (COPD) to determine which non-drug treatments best address their sleep problems. Among several interventions tested, progressive muscle relaxation technique (PMRT), therapeutic touch (TT), and relaxation exercise (RE) showed significant improvements in sleep quality. Surprisingly, cognitive behavioral therapy for insomnia (CBT-I)—often considered a gold standard for sleep problems in the general population—lacked substantial evidence of effectiveness specifically for COPD patients, as did pulmonary rehabilitation and non-invasive ventilation.
What the study looked like
This systematic review followed PRISMA guidelines and searched four major medical databases for randomized controlled trials, cohort studies, and cross-sectional studies examining non-pharmacological treatments for poor sleep in COPD populations. The researchers identified 12 eligible studies with a combined total of 783 participants. Of these, nine were randomized controlled trials (the strongest design for evaluating interventions), one was a cohort study, and two were cross-sectional studies. Quality assessment using the JBI scale found three studies to be high quality with low bias risk, seven of moderate quality, and two of low quality with high bias risk. The interventions examined included CBT-I, cognitive behavioral therapy, pulmonary rehabilitation, progressive muscle relaxation, non-invasive ventilation, relaxation exercise, and therapeutic touch.
Why researchers think this happened
COPD causes poor sleep quality through multiple pathways: nocturnal dyspnea (nighttime breathing difficulty) directly disrupts sleep, while the burden of chronic illness creates psychological distress including anxiety and depression. The review authors suggest that body-focused relaxation techniques—PMRT, TT, and RE—may work by addressing the physical tension and stress response that compounds breathing difficulties at night. These techniques potentially calm the nervous system and reduce the anxiety cycle that worsens both breathing and sleep. The lack of clear evidence for CBT-I in COPD patients may reflect that standard sleep therapy doesn’t adequately address the unique physiological challenges of nighttime breathing problems. The heterogeneous outcome measures across studies made it impossible to rank which relaxation approach works best, suggesting researchers haven’t yet standardized how to measure sleep improvements in this population.
How to read this carefully
Several important limitations deserve attention. First, with only 783 total participants across 12 studies, the evidence base remains relatively small, and two studies had high bias risk. Second, the review couldn’t rank the effectiveness of PMRT, TT, and RE against each other because studies used different measurement tools for sleep quality—making direct comparisons impossible. Third, most interventions had only one or two studies examining them, which is insufficient to draw firm conclusions. The finding that CBT-I showed no substantial effectiveness doesn’t mean it definitely doesn’t work for COPD patients; rather, there simply weren’t enough well-designed studies in this specific population. This is correlation-based evidence from observational and intervention studies, not proof of causation. Replication with larger, standardized trials is needed.
What this means for everyday life
If you or someone you care about lives with COPD and struggles with sleep, this review suggests it might be worth exploring body-based relaxation approaches rather than immediately assuming therapy-based programs like CBT-I will help. Progressive muscle relaxation—systematically tensing and releasing muscle groups—can be learned through free online resources, apps, or physical therapists. Given this evidence, discussing relaxation techniques with your pulmonary care team could be valuable, especially since these approaches are low-risk and don’t involve medications. However, remember that current COPD treatment guidelines don’t yet include sleep management as standard care, meaning you may need to advocate for sleep-focused support. The review also highlights that researchers haven’t determined optimal combinations of treatments—perhaps pairing relaxation techniques with other approaches could prove beneficial, though that remains to be studied. Most importantly, poor sleep in COPD isn’t just a nuisance; it’s linked to increased hospitalizations and reduced quality of life, making it worthy of serious attention in your care plan.