Sleep and Relaxation Techniques: What the Evidence Shows

Sleep and relaxation techniques have modest, real support for people with insomnia, and the most strongly recommended insomnia treatment, cognitive behavioral therapy for insomnia (CBT-I), often includes relaxation as one component. The American Academy of Sleep Medicine (AASM) 2021 guideline recommends multicomponent CBT-I as a strong recommendation and relaxation therapy on its own as a conditional one^[1].

In the AASM's pooled analysis, relaxation therapy cut the time it took adults with chronic insomnia to fall asleep by about 7 minutes compared with control conditions^[2]. Rates of insomnia and other sleep disorders are covered on their own pages; this article covers what the techniques are and what trials found.

The National Center for Complementary and Integrative Health (NCCIH) summarizes the position this way: relaxation techniques by themselves have a small amount of low-quality evidence for insomnia, yet may still be recommended depending on personal preference and treatment availability^[3].

In 2020, 17.8% of U.S. adults had trouble staying asleep most days or every day in the past 30 days, according to the National Health Interview Survey^[6]. Women were more likely than men to have trouble falling asleep (17.1% vs. 11.7%)^[6].

Use of these practices has grown. In 2022, 18.3% of U.S. adults used meditation and 6.7% used guided imagery or progressive relaxation, both significant increases since 2002^[7].

NCCIH groups relaxation techniques into six main types^[8]. Each targets the same relaxation response through a different route.

• Progressive muscle relaxation (PMR): tensing different muscle groups and then releasing the tension^[8].
• Autogenic training: mental exercises built on self-suggestion that focus attention on the body's sensations of relaxation^[8].
• Guided imagery: picturing objects, scenes or events associated with calm in an attempt to produce the same feeling in the body^[8].
• Breathing exercises: slow, deep breaths, also called diaphragmatic breathing^[8].
• Biofeedback-assisted relaxation: an electronic device shows changes in heart rate, blood pressure or muscle tension so a person can learn to manage them^[8].
• Self-hypnosis: learning to produce the relaxation response when prompted by a personal phrase or cue^[8].

Meditation, yoga, tai chi and qigong can also produce the relaxation response, though NCCIH classes them as separate practices^[8]. Named routines such as 4-7-8 breathing are not evaluated as separate sleep treatments in the guideline and reviews cited here.

Breathing techniques are covered in more depth, with their trial data for anxiety, in deep breathing for anxiety. Sensory-based exercises appear in grounding techniques for anxiety.

The AASM task force identified 12 randomized trials comparing relaxation therapy with wait-list, minimal-intervention or placebo conditions in adults with chronic insomnia^[1]. Only 5 provided data suitable for meta-analysis of at least one critical outcome^[1].

Across 6 trials, sleep-diary time to fall asleep (sleep onset latency) was 7.21 minutes shorter after relaxation therapy than after control^[2]. Across 4 trials, time awake after first falling asleep (wake after sleep onset) differed by 15.67 minutes, but the confidence interval ran from 39.15 minutes lower to 7.81 minutes higher, so the result was not conclusive^[2].

The trials did show clinically significant improvements in responder rate and sleep quality^[1]. The task force rated overall quality of evidence as low because of risk of bias and imprecision^[1].

The conditional recommendation rested on more than effect sizes. The AASM cited patient preference, the fact that most mental health providers are trained to deliver relaxation therapy, and its potential to require only limited resources^[1].

Older evidence on specific methods is weaker. A 2015 review of 7 studies with 284 participants found autogenic training or guided imagery shortened time to fall asleep but performed no better than placebo, and its authors judged the results doubtful^[8].

Progressive muscle relaxation has the most recent pooled data among single relaxation techniques. A 2026 meta-analysis in Frontiers in Public Health included 14 randomized trials with 957 adults and found PMR was associated with better sleep quality (Hedges' g = −1.24)^[4].

That headline number needs context. Heterogeneity was high (I² = 85.5%), and in an adjusted analysis the effect shrank to g = −0.92, though it stayed statistically significant^[4].

Benefits appeared in both cancer patients (g = −1.17) and non-cancer patients (g = −1.29)^[4]. Adults younger than 55 showed a significant improvement, while the result for adults 55 and older (4 studies) was not statistically significant^[4].

Smaller trials point the same way in specific groups. NCCIH notes a randomized trial of 108 women suggesting progressive relaxation may help insomnia during menopause, and a trial of 161 postmenopausal women in which relaxation training plus sleep-habit education helped^[3].

Mindfulness meditation shows benefit against placebo-style controls but not against established sleep treatments. A meta-analysis of 18 trials with 1,654 participants found moderate-strength evidence that it improved sleep quality compared with time- and attention-matched controls, with effect sizes of 0.33 after treatment and 0.54 at follow-up^[5].

Compared with specific active controls, such as evidence-based sleep treatments, mindfulness showed no difference in sleep quality (effect size 0.03 after treatment)^[5]. The authors called the findings preliminary^[5].

Guideline bodies have not endorsed mindfulness as a stand-alone insomnia treatment. The AASM's 2021 guideline found too little evidence to make a recommendation on mindfulness alone, and the 2019 VA/DoD guideline said the evidence was insufficient to judge^[3].

A 2022 review of 20 studies and 2,890 participants found mindfulness-based stress reduction might be ineffective for sleep quality in people with insomnia, while noting the studies were small and biased^[3].

Movement-based practices show signals for sleep quality more than for insomnia itself. A 2020 review of 19 studies and 1,832 participants suggested yoga may improve sleep quality, but not necessarily insomnia, in women with sleep problems^[3]. A 2019 review of 4 studies with 353 older adults found a small-to-moderate positive effect of yoga on sleep quality^[3].

For tai chi, a 2022 review of 5 studies (742 participants) suggested improved sleep quality, particularly among older adults, with its effect on insomnia still needing study^[3]. The 2019 VA/DoD guideline found insufficient evidence to recommend for or against either yoga or tai chi for insomnia^[3].

Music listening has a 2022 review of 13 studies with 1,007 adults, which found it may improve reported sleep quality in people with insomnia, with not enough good-quality evidence on insomnia severity^[3].

For hypnotherapy, a 2023 review of 44 studies with 2,551 participants found 47.7% of studies showed beneficial effects on sleep, 22.7% mixed results and 29.5% no impact^[3]. Among 11 studies limited to people with sleep disturbances, 54.5% showed positive results^[3].

CBT-I is a multicomponent treatment, and relaxation is often one of its parts. NCCIH lists progressive relaxation, abdominal breathing and guided imagery training among the relaxation types CBT-I commonly includes^[3].

The AASM's 2021 guideline lists its recommendations by strength^[1]:

• Multicomponent CBT-I: strong^[1].
• Multicomponent brief therapies for insomnia: conditional^[1].
• Stimulus control, sleep restriction therapy and relaxation therapy, each as a single-component therapy: conditional^[1].

A conditional recommendation means clinicians are expected to weigh clinical judgment and the patient's values and preferences^[1]. NCCIH's 2021 fact sheet, citing American College of Physicians guidelines from 2016, states that relaxation techniques on their own don't seem especially promising for sleep^[8].

Medication is the other main route for chronic insomnia; drug classes and their trial data are covered in sleeping pills. Stress-related sleep loss is tracked on the chronic stress page.

Relaxation techniques are generally considered safe for healthy people, and most research studies report no negative side effects^[8].

Some people do report increased anxiety, intrusive thoughts or fear of losing control during relaxation practice^[8]. There are rare reports of certain techniques causing or worsening symptoms in people with epilepsy, certain psychiatric conditions, or a history of abuse or trauma^[8].

For mindfulness, few studies have looked for harmful effects, so NCCIH says definite safety statements are not possible^[3]. Yoga carries the injury risks of other physical activity, most often sprains and strains of the knee or lower leg^[3].