slept with one eye open

A form of sleep with one eye open — To remain vigilant at all times, especially by remaining partially awake or sleeping only lightly so as to avoid being caught off guard.

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Meanings

verb
  1. participlepastsimple past and past participle of sleep with one eye open
Cite this entry
APA

slept with one eye open. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/slept%20with%20one%20eye%20open

MLA

“slept with one eye open.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/slept%20with%20one%20eye%20open. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “slept with one eye open,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/slept%20with%20one%20eye%20open.

Source: slept with one eye open on Wiktionary, CC BY-SA 4.0.