Research
Adherence
Internet-delivered CBTI leads to durable improvements in sleep efficiency and insomnia severity that are maintained for up to 48 weeks post-treatment.
The benefits of iCBTI are not just short-term. Improvements in sleep efficiency and reduced insomnia severity tend to last for at least 4 to 48 weeks after finishing the program, suggesting that the behavioral changes learned are durable.
WeakSupportsHIGH confidence
Improvements in sleep efficiency, the insomnia severity index and depression scores with internet-delivered cognitive behavioral therapy were maintained from 4 to 48 weeks after post-treatment assessment.
Why this rating
Based on pooled data from multiple RCTs with long-term follow-up.
Source
Internet-Delivered Cognitive Behavioral Therapy to Treat Insomnia: A Systematic Review and Meta-Analysis
Michael Seyffert et al. · PLoS ONE · 2016
DOI 10.1371/journal.pone.0149139
Meta-analysis · 15 studiesCited 346×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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- Internet-delivered Cognitive Behavioral Therapy for Insomnia (iCBTI) significantly improves sleep efficiency, total sleep time, and insomnia severity compared to waitlist controls in adults.Weak
- Internet-delivered CBTI significantly reduces the severity of depressive symptoms in adults with insomnia.Weak
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