1. Sullivan, S. S., Carskadon, M. A., Dement, W. C., & Jackson, C. (2022). Normal human sleep: an overview. In M. Kryger, T. Roth, C. A. Goldstein, & W. C. Dement (Eds.), Principles and practice of sleep medicine (pp. 16–26). Elsevier.
2. Bódizs R. Theories of the functions of sleep. In: Sleep medicine textbook. European Sleep Research Society. Eds: Bassetti C, McNicholas W, Paunio T, Peigneux P. European Sleep Research Society 2021:41–55.
3. Adamantidis A, Fort P, Luppi HV. The neurophysiology and neurobiology of wakefulness and non-Rapid eye movement (NREM) sleep. In: Sleep medicine textbook. European Sleep Research Society. Eds: Bassetti C, McNicholas W, Paunio T, Peigneux P. European Sleep Research Society 2021:7–14.
4. Siegel, J. (2022). Rapid eye movement sleep control and function. In M. Kryger, T. Roth, C. A. Goldstein, & W. C. Dement (Eds.), Principles and practice of sleep medicine (pp. 78–85). Elsevier.
5. Berry. R. B., Quan, S. F., & Abreu, A. R., et al. for the American Academy of Sleep Medicine. (2020). The AASM Manual for the scoring of sleep and associated events: Rules, terminology, and technical specifications. Version 2.6. Darien; American Academy of Sleep Medicine.