- Arabic: نُعَاس m (nuʕās), سِنَة (ar) f (sina)
- Armenian:
- Old Armenian: նիրհ f (nirh)
- Belarusian: санлі́васць f (sanlívascʹ), аспа́ласць f (aspálascʹ)
- Bulgarian: сънли́вост (bg) f (sǎnlívost)
- Catalan: somnolència f, son (ca) f
- Chinese:
- Mandarin: 睡意 (zh) (shuìyì), 嗜睡 (shìshuì), 嗜睡症 (zh) (shìshuìzhèng)
- Czech: ospalost f
- Dutch: slaperigheid (nl) f
- Finnish: uneliaisuus (fi)
- French: somnolence (fr) f, assoupissement (fr) m, torpeur (fr) f
- Old French: dorveille f
- Georgian: თვლემა (tvlema), ძილიანობა (ʒilianoba), მოთენთილობა (motentiloba)
- German: Schläfrigkeit (de) f
- Greek: νύστα (el) f (nýsta)
- Ancient: νυσταγμός m (nustagmós), ληθᾱργῐ́ᾱ f (lēthārgĭ́ā)
- Hindi: झूम (hi) f (jhūm)
- Hungarian: álmosság (hu), aluszékonyság (hu)
- Icelandic: höfgi (is) m
- Irish: codlatacht f, marbhnéal m, meathchodladh m, míogarnach f, múisiam m, múisiúntacht f, sáimhríocht f, sámhántacht f, scim f, suanmhaireacht
- Italian: sonnolenza (it) f, sopore (it) m, letargia (it) f, sopore (it) m, sopimento m, abbiocco (it) m
- Japanese: 眠気 (ja) (ねむけ, nemuke), 眠け (ja) (ねむけ, nemuke)
- Korean: 졸음 (ko) (joreum)
- Latin: somnus m, sopor m, lēthargus m, somnolentia f, lēthargia f
- Latvian: miegainums m, miegainība f
- Macedonian: поспаност f (pospanost)
- Navajo: bił
- Pali: middha
- Persian: خوابآلودی (xâb-âludi)
- Polish: senność (pl) f, ospałość (pl) f, śpiączka (pl) f (colloquial)
- Portuguese: sonolência (pt) f, torpor (pt) m
- Russian: сонли́вость (ru) f (sonlívostʹ), спя́чка (ru) f (spjáčka), дремо́та (ru) f (dremóta)
- Sanskrit: स्वप्न (sa) m (svápna)
- Scottish Gaelic: èislean m
- Serbo-Croatian:
- Cyrillic: mȁmūrnōst (sh), дрѐмљиво̄ст f
- Roman: pospanost (sh), mȁmūrnōst (sh), drèmljivōst (sh), fjȁka (sh) f
- Slovak: ospalosť f
- Slovene: zaspanost f
- Spanish: soñolencia f, somnolencia (es) f, sopor (es) m, duermevela (es) f, adormecimiento (es) m, modorra (es) f
- Swedish: sömnighet (sv) c
- Tagalog: antok
- Tamil: அசதி (ta) (acati), தூக்கம் (ta) (tūkkam), மயக்கம் (ta) (mayakkam)
- Telugu: మైకము (te) (maikamu)
- Thai: ความง่วง (th) (kwaam-ngûuang)
- Turkish: bilinçsizlik (tr), gaflet (tr), rehavet (tr), uyuşukluk (tr)
- Ukrainian: сонли́вість f (sonlývistʹ), со́нність f (sónnistʹ), сонно́та f (sonnóta), сонли́виці f pl (sonlývyci), оспа́лість f (ospálistʹ), сонни́ці f pl (sonnýci)
- Urdu: جھوم f (jhūm), غُنُودَگی f (ġunūdagī)
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