Word.ws English Dictionary

deep sleep

deep sleep noun: used other than figuratively or idiomatically: see deep, sleep.

Noun

deep sleep (countable and uncountable, plural deep sleeps)

  1. Used other than figuratively or idiomatically: see deep, sleep.
  2. stage 3 of non-rapid eye movement sleep
    Synonyms:
    slow-wave sleep, cataphor
  3. (rare) Artificially induced hibernation in humans for the purpose of long distance space travel.
    • Donnchadh and Gwalcmai, along with the other fourteen teams selected for planetary infiltration, had been put into deep sleep shortly after liftoff from their planet.2004, Robert Doherty, Area 51: Legend, →ISBN
    • The Kironian had remained in deep sleep until alerted by a high-pitched squeaky sound. When the Kironian woke, everything seemed as though it had just left Kiron.2005, Bob Ticer, Visiting the Strange Planet Called Earth, →ISBN, page 13

deep sleep meaning in Hindi, Tamil, Kannada and Gujarati

deep sleep in Hindi

deep sleep
सुषुप्ति suṣupti

deep sleep in Tamil

ஆழுறக்கம்

deep sleep in Kannada

ನಿಡುನಿದ್ದೆ

deep sleep in Gujarati

deep sleep, so deep as to be dreamless
સુષુપ્તિ suṣupti
deep sleep
ઘારણ ghāraṇ
More languagesFewer languages
deep sleep in Sanskrit
सुषुप्त súṣupta
deep sleep in Arabic
نَوْم عَمِيق nawm ʕamīq
deep sleep in Vietnamese
ngủ sâu

Synonyms of deep sleep

Forms of deep sleep

pluraldeep sleeps

Questions about deep sleep

What does deep sleep mean?
Deep sleep means used other than figuratively or idiomatically: see deep, sleep.
What is deep sleep in Hindi?
Deep sleep in Hindi is सुषुप्ति (suṣupti). See Deep sleep meaning in Hindi.
What part of speech is deep sleep?
Deep sleep is a noun.
What is the plural of deep sleep?
The plural of deep sleep is deep sleeps.

Words near deep sleep in the dictionary

  1. deep seas
  2. deep six
  3. deep sixed
  4. deep sixes
  5. deep sixing
  6. deep sleep
  7. deep sleeps
  8. deep song
  9. deep songs
  10. deep soul
  11. Deep South

Source and license

Adapted from Wiktionary: deep sleep (page history and authors); सुषुप्ति (Hindi) (page history and authors); deep sleep (Tamil Wiktionary) (page history and authors); deep sleep (Kannada Wiktionary) (page history and authors); ઘારણ (Gujarati) (page history and authors); सुषुप्त (Sanskrit) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-deep sleep.wav.

Cite this entry: “deep sleep.” Word.ws, https://word.ws/deep_sleep. Based on Wiktionary, CC BY-SA 4.0.