chronotype
noun
chro·no·type
ˈkrō-nə-ˌtīp 
: the internal circadian rhythm or body clock of an individual that influences the cycle of sleep and activity in a 24-hour period
It is also true that we are increasingly sleeping outside of the times normally dictated by our internal circadian clocks (our "chronotype").—
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“Chronotype.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/chronotype. Accessed 31 Oct. 2025.
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