orthodox sleep

noun

or·​tho·​dox sleep ˈȯr-thə-ˌdäks- How to pronounce orthodox sleep (audio)
: non-rem sleep

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“Orthodox sleep.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/orthodox%20sleep. Accessed 25 Dec. 2024.

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