vigilance, alertness, wariness; see attention 1, prudence.
sleeplessness, somnambulism, pernoctation; see insomnia.
"wakefulness." YourDictionary, n.d. Web. 03 March 2019. <https://thesaurus.yourdictionary.com/wakefulness>.
wakefulness. (n.d.). Retrieved March 03rd, 2019, from https://thesaurus.yourdictionary.com/wakefulness
The condition of being alert:
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