@article{sompurvasanthkumar2026-0e684f26,
  author  = {Sompur Vasanthkumar, S. K.},
  title   = {{When Insomnia Becomes an Economic Disease: Linking Phenotype, Comorbidity, Treatment, and Societal Cost—An Evidence-Based Narrative Review}},
  journal = {Preprints.org},
  year    = {2026},
  doi     = {10.20944/preprints202609.2191.v1},
  url     = {https://doi.org/10.20944/preprints202609.2191.v1}
}