Can Sound Help You Sleep? What the Research Says About Meditation and Music

Sound-based tools for sleep — guided meditations, calming music, breathwork audio — have become hugely popular. But are they backed by real evidence, or is it mostly placebo?

The peer-reviewed research has some clear answers.

Of all the sound-based approaches to sleep, guided meditation and mindfulness have the most consistent research behind them. A systematic review and meta-analysis published in the Annals of the New York Academy of Sciences, covering 18 randomised controlled trials with over 1,600 participants, found moderate-strength evidence that mindfulness meditation significantly improved sleep quality. The effects held up at follow-up assessments of 5–12 months, suggesting lasting rather than temporary benefits (Rusch et al., 2019).

A larger meta-analysis in PLOS ONE, covering 61 RCTs, confirmed these findings and showed that longer-term mindfulness programmes produced greater improvements in sleep quality (Yang et al., 2022).

Crucially, you don’t need to be in a studio or clinic to benefit. A systematic review in Current Psychiatry Reports found that virtual mindfulness-based interventions — delivered through apps or audio recordings — were more effective at improving sleep quality than usual care, and showed preliminary evidence of lasting effects (Huberty et al., 2021). This is significant because it means guided audio sessions can deliver real benefits without a therapist present.

Music has a growing evidence base for sleep, though the effects are more targeted. A meta-analysis published in PLOS ONE in 2025, covering 10 studies with over 600 participants, found that music interventions significantly improved sleep quality in older adults (Gavrielovet al., 2025).

One of the more robust trials, published in Journal of Advanced Nursing, compared relaxing classical music at bedtime to an audiobook and a no-intervention control group. The music group showed significant improvements in sleep quality and a reduction in depressive symptoms — effects that weren’t seen in either of the other groups (Harmat, Takács & Bódizs, 2008).

A meta-narrative review in Frontiers in Neurology, examining 27 recent empirical studies, found that 74% showed positive effects on sleep. The researchers concluded that music appears to improve sleep primarily through subjective pathways — reducing anxiety, lowering physiological arousal, and helping people emotionally regulate before bed — rather than by directly altering sleep stages (Chen et al., 2024).

Interestingly, a small RCT found no effect of relaxing music on people who were already sleeping well, suggesting the benefits are most meaningful for those who actually need help winding down.

A meta-analysis in Sleep Medicine Reviews found that behavioural sleep interventions — including relaxation techniques, consistent sleep timing, and reduced pre-sleep stimulation — had a medium-sized positive effect on sleep quality in adults without a diagnosed sleep disorder (Friedrich & Schlarb, 2018). A separate meta-analysis in the same journal found a dose-response relationship: the greater the improvement in sleep habits, the greater the benefit to mental health (Scott et al., 2021).

The research suggests that the value of guided meditation and calming music isn’t just in the audio itself — it’s in what the audio represents: a consistent signal to the brain that it’s time to transition from wakefulness to rest. When used as part of a regular pre-sleep routine, these tools help create the conditions the body needs to wind down.

The evidence supports guided meditation and relaxing music as effective, accessible tools for improving sleep — particularly for people who find it hard to switch off. They work best not as one-off fixes but as part of a consistent wind-down routine that reduces stimulation and signals safety to the brain. No equipment required, no side effects, and the research suggests the benefits can last well beyond the night you use them.