To cite SleepCycles in publications use:

C. B, C. C (2021). “'SleepCycles' package for R - A free software tool for the detection of sleep cycles from sleep staging.” MethodsX. doi: 10.1016/j.mex.2021.101318, https://www.sciencedirect.com/science/article/pii/S2215016121001114?via%3Dihub.

Corresponding BibTeX entry:

  @Article{,
    title = {'SleepCycles' package for R - A free software tool for the
      detection of sleep cycles from sleep staging},
    author = {Blume C. and Cajochen C.},
    journal = {MethodsX},
    year = {2021},
    doi = {10.1016/j.mex.2021.101318},
    url =
      {https://www.sciencedirect.com/science/article/pii/S2215016121001114?via%3Dihub},
  }