Editing Sleep cycle (section)

== References ==
{{Reflist|refs=

<ref name=Hartmann1968>{{cite journal | last = Hartmann | first = Ernest | author-link = Ernest Hartmann | title = The 90-Minute Sleep-Dream Cycle | journal = Archives of General Psychiatry | volume = 18 | issue = 3 | pages = 280–6| date = March 1968 | doi = 10.1001/archpsyc.1968.01740030024004 | pmid = 5638533 }}</ref>

}}

=== Bibliography ===
* Mallick, B. N.; S. R. Pandi-Perumal; Robert W. McCarley; and Adrian R. Morrison (2011). ''Rapid Eye Movement Sleep: Regulation and Function''. Cambridge University Press. {{ISBN|978-0-521-11680-0}}
*Nir, and Tononi, "Dreaming and the Brain: from Phenomenology to Neurophsiology." ''Trends in Cognitive Sciences'', vol. 14, no. 2, 2010, pp.&nbsp;88–100. 
*Varela, F., Engel, J., Wallace, B., & Thupten Jinpa. (1997). ''Sleeping, dreaming, and dying: An exploration of consciousness with the Dalai Lama''.

[[Category:Sleep physiology]]
[[Category:Chronobiology]]