Word.ws English Dictionary

sleep regression

sleep regression noun: a period of days or weeks during the first two years of life characterized by a change in an infant's sleep patterns, leading to irregularities such as increased awakenings and fussiness.

Noun

sleep regression (plural sleep regressions)

  1. A period of days or weeks during the first two years of life characterized by a change in an infant's sleep patterns, leading to irregularities such as increased awakenings and fussiness.
    • four-month sleep regression
    • Between their input and Google’s, Smith surmised that her daughter was experiencing what many parenting books and websites refer to as a “sleep regression” — a stretch of days or even weeks where babies suddenly don’t seem to sleep or nap in the same ways they used to.2020 April 15, Jessica Wapner, “Are Sleep Regressions Real?”, in The New York Times

Forms of sleep regression

pluralsleep regressions

Questions about sleep regression

What does sleep regression mean?
Sleep regression means a period of days or weeks during the first two years of life characterized by a change in an infant's sleep patterns, leading to irregularities such as increased awakenings and fussiness.
What part of speech is sleep regression?
Sleep regression is a noun.
What is the plural of sleep regression?
The plural of sleep regression is sleep regressions.

Words near sleep regression in the dictionary

  1. sleep out
  2. sleep over
  3. sleep paralyses
  4. sleep paralysis
  5. sleep pressure
  6. sleep regression
  7. sleep rough
  8. sleep schedule
  9. sleep schedules
  10. sleep shorts
  11. sleep spindle

Source and license

Adapted from Wiktionary: sleep regression (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:

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