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Area of Science:

  • Sleep science
  • Human behavior
  • Wearable technology

Background:

  • Limited epidemiological data on travel's effect on sleep.
  • Previous research often focused on time-zone-crossing travel.
  • Understanding sleep changes during everyday travel is crucial.

Purpose of the Study:

  • To investigate sleep quantity and timing changes associated with travel using a large-scale dataset.
  • To explore the relationship between home sleep duration and travel sleep patterns.
  • To assess the utility of consumer-grade wearable devices for sleep research.

Main Methods:

  • Analysis of a global dataset comprising ~20,000 individuals and 3.17 million nights of sleep data.
  • Focus on short, non-time-zone-crossing trips.
  • Utilized data from consumer-grade wearable devices.

Main Results:

  • Travel exhibited a balancing effect on sleep duration.
  • Underslept individuals increased sleep duration during travel.
  • Individuals with longer home sleep duration reduced sleep during travel.
  • Travel wake times shifted later on weekdays and earlier on weekends.

Conclusions:

  • Travel's effect on sleep duration is inversely related to an individual's typical sleep duration.
  • Consumer-grade wearable data offers valuable insights into environmental and behavioral influences on sleep.
  • Further research can leverage wearable technology to understand sleep dynamics in various contexts.