To cite package ‘sleeper’ in publications use:

  Muschelli J (2026). _sleeper: Estimate Sleep Status from
  Accelerometry Data_. R package version 0.5.0,
  <https://CRAN.R-project.org/package=sleeper>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sleeper: Estimate Sleep Status from Accelerometry Data},
    author = {John Muschelli},
    year = {2026},
    note = {R package version 0.5.0},
    url = {https://CRAN.R-project.org/package=sleeper},
  }