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Vinony

sleepless

adjective

  1. deprived of/unable to sleep
L340500 on Wikidata ↗

Wiktionary

Pronunciation: /ˈsliːpləs/

adj

Etymology: From Middle English slepeles, from Old English slǣplēas; equivalent to sleep + -less.

  1. Characterized by an absence of sleep: wakeful.

    “I spent a sleepless night worrying about the exams.”