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microsleep

noun

microsleep is spelled M-I-C-R-O-S-L-E-E-P: 10 letters. It appears about once in every 83 million words in written English, the 290,185th most frequent word form (wordfreq, 2021 data). As a noun, microsleep means “A brief period of sleep, usually of a few seconds, that may result from sleep deprivation or various medical conditions” (English Wiktionary, September 2026). The plural of microsleep is microsleeps.

How many letters and syllables are in microsleep?

Letters10: M-I-C-R-O-S-L-E-E-P
In writingabout once in every 83 million words; the 290,185th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is microsleep?

Microsleep appears about once in every 83 million words in written English, the 290,185th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce microsleep?

  • US

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-microsleep.wav, Wikimedia Commons (author and licence on each file's page).

Forms of microsleep

  • microsleeps plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does microsleep mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    A brief period of sleep, usually of a few seconds, that may result from sleep deprivation or various medical conditions.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Microsleep in Spanish, French, German and Portuguese

In the sense brief period of sleep, usually of a few seconds:

LanguageWords
GermanSekundenschlaf
Spanishmicrosueño

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does microsleep come from?

From micro- + sleep.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What to look up after microsleep