Published on in Vol 22, No 2 (2020): February

Preprints (earlier versions) of this paper are available at, first published .
Four-Year Trends in Sleep Duration and Quality: A Longitudinal Study Using Data from a Commercially Available Sleep Tracker

Four-Year Trends in Sleep Duration and Quality: A Longitudinal Study Using Data from a Commercially Available Sleep Tracker

Four-Year Trends in Sleep Duration and Quality: A Longitudinal Study Using Data from a Commercially Available Sleep Tracker


  1. Yu H, Shin O, Kim S, Park C. Effect of an Inflatable Air Mattress with Variable Rigidity on Sleep Quality. Sensors 2020;20(18):5317 View
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  6. Mattingly S, Grover T, Martinez G, Aledavood T, Robles-Granda P, Nies K, Striegel A, Mark G. The effects of seasons and weather on sleep patterns measured through longitudinal multimodal sensing. npj Digital Medicine 2021;4(1) View
  7. Ramdhany Y, Devi Goorah S, Cheeneebash J, Niketan Oodun R. Factors Associated with Poor Sleep among Young People in Mauritius: A Survey-Based Study. International Journal of Medical Students 2022;10(3):236 View
  8. Lim J, Yun J, Choi S, Park S, Suk H, Jang J. Greater variability in daily sleep efficiency predicts depression and anxiety in young adults: Estimation of depression severity using the two-week sleep quality records of wearable devices. Frontiers in Psychiatry 2022;13 View
  9. Smolders K, Druijff-van de Woestijne G, Meijer K, Mcconchie H, de Kort Y. Smartphone Keyboard Interaction Monitoring as an Unobtrusive Method to Approximate Rest-Activity Patterns: Experience Sampling Study Investigating Interindividual and Metric-Specific Variations. Journal of Medical Internet Research 2023;25:e38066 View
  10. Gafarov V, Gromova E, Gagulin I, Panov D, Maksimov V, Gubina M, Gafarova A. Association of sleep disorders with various polymorphic variants of the 5-HTTLPR SNP rs25531 A>G gene in people aged 25–44. Neurology, Neuropsychiatry, Psychosomatics 2023;15(1):43 View
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  12. Tao Z, Feng Y, Liu J, Tao L. Trends and disparities in sleep quality and duration in older adults in China from 2008 to 2018: A national observational study. Frontiers in Public Health 2023;11 View
  13. Jalali N, Sahu K, Oetomo A, Morita P. Usability of Smart Home Thermostat to Evaluate the Impact of Weekdays and Seasons on Sleep Patterns and Indoor Stay: Observational Study. JMIR mHealth and uHealth 2022;10(4):e28811 View
  14. Koh K, Hyder A, Karale Y, Kamel Boulos M. Big Geospatial Data or Geospatial Big Data? A Systematic Narrative Review on the Use of Spatial Data Infrastructures for Big Geospatial Sensing Data in Public Health. Remote Sensing 2022;14(13):2996 View
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Books/Policy Documents

  1. Chinoy E, Markwald R. Encyclopedia of Sleep and Circadian Rhythms. View
  2. Roomkham S, Ploderer B, Smith S, Perrin D. Quantifying Quality of Life. View
  3. Cook J, Cuamatzi Castelan A, Cheng P. Encyclopedia of Sleep and Circadian Rhythms. View
  4. V. Gafarov V, A. Gromova E, N. Maksimov V, V. Gagulin I, V. Gafarova A. Circadian Rhythm - New Insights Into Physiological and Pathological Implications. View
  5. Chatterjee A, Prinz A, Pahari N, Das J, Riegler M. Frontiers of ICT in Healthcare. View
  6. Coveney C, Greaney M, Hsu E, Meadows R, Williams S. Technosleep. View
  7. V. Gafarov V, A. Gromova E, N. Tripelgorn A, V. Gagulin and Almira V. Gafarova I. Insomnia From Childhood to Elderly [Working Title]. View