| swoon(noun, lethargy, nothingness, daze, slumber) | |
| syncope(slumber, stupor, oblivion, unconsciousness) | |
| take it easy(verb, expression, idiom, place, settle) | |
| tranquilize(verb, rest) | |
| oblivion(noun, end, release, ruin, finish) | |
| abide | |
| afterlife(noun, end, release, ruin, finish) | |
| amazement(lethargy, daze, slumber, torpor, inertness) | |
| anesthesia(lethargy, daze, slumber, torpor, inertness) | |
| anticyclone | |
| apathy(noun, disregard, dullness, inactivity, indifference) | |
| asphyxia(lethargy, daze, slumber, torpor, inertness) | |
| ataraxia | |
| ataraxy | |
| awake | |
| balance | |
| bane | |
| be caught napping(expression, idiom) | |
| be dormant | |
| be neglectful |
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| APA | Smart Define. (2015). sleep thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sleep/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sleep thesaurus" https://smartdefine.org/sleep/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, sleep thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sleep/thesaurus/synonyms>. |
| MLA | Smart Define. "sleep thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/sleep/thesaurus/synonyms> |