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Virtual reality combined with biofeedback improves sleep quality and daytime function in patients with chronic insomnia

In a retrospective study of 83 patients with chronic insomnia, those receiving VR combined with biofeedback showed significantly greater improvements in PSQI and ISI scores compared to biofeedback alone (P < 0.01). Polysomnography revealed shortened sleep latency, prolonged total sleep time, and reduced awakenings (P < 0.05). Daytime function improved with decreased MFI fatigue scores and increased DFSS scores (P < 0.05), with no significant difference in adverse reactions at 1-month follow-up.

Last updated: Aug 26, 2026•0 RCTs•📖 Read as article →

Evidence Score

Evidence Score32/100
Human RCT☆☆☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. Virtual reality combined with biofeedback improves sleep quality and daytime function in patients with chronic insomnia.

observational

Xu X, Kou X, Yu J · American journal of translational research (2026)

Participants: N/A
Duration: 1 month follow-up
Intervention: Virtual reality combined with biofeedback therapy
Outcome: Sleep quality (PSQI, ISI), polysomnography parameters (sleep latency, total sleep time, awakenings), daytime function (MFI, DFSS), adverse reactions
Effect Size: N/A
Population: Patients with chronic insomnia (N=83) from a hospital sleep department

Result:

PubMed: 42631123DOI: 10.62347/XKYF7341

Mechanism Graph

VR provides immersive relaxation and distraction, reducing pre-sleep cognitive arousal
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Biofeedback enhances awareness and control of physiological responses (e.g., heart rate, muscle tension)
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Combined approach promotes relaxation and reduces hyperarousal
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Result: Improved sleep quality and daytime function

Limitations

  • ⚠Retrospective design with potential selection bias
  • ⚠Single-center study with limited generalizability
  • ⚠No blinding or randomization, increasing risk of bias
  • ⚠Follow-up limited to 1 month, long-term effects unknown

Frequently Asked Questions

What is the primary benefit of adding VR to biofeedback for chronic insomnia?▼

The combination significantly improves sleep quality (PSQI, ISI) and daytime function (MFI, DFSS) compared to biofeedback alone.

Does VR combined with biofeedback affect polysomnography measures?▼

Yes, it shortens sleep latency, prolongs total sleep time, and reduces the number of awakenings.

Is VR combined with biofeedback safe?▼

The study found no significant difference in adverse reactions between groups at 1-month follow-up (P=0.071), suggesting it is safe.

What population was studied in this research?▼

Patients with chronic insomnia admitted to a hospital sleep department, with a total sample size of 83.

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References

  1. 1.Xu X, Kou X, Yu J. "Virtual reality combined with biofeedback improves sleep quality and daytime function in patients with chronic insomnia.." American journal of translational research, 2026. PMID: 42631123 DOI: 10.62347/XKYF7341
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.