From Latin semi- (“half”) + somnus (“sleep”) + -ia. Compare with insomnia. Coined by British sleep expert Neil Stanley in 2007.
"semisomnia." YourDictionary, n.d. Web. 16 July 2019. <https://www.yourdictionary.com/semisomnia>.
semisomnia. (n.d.). Retrieved July 16th, 2019, from https://www.yourdictionary.com/semisomnia
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