Word.ws English Dictionary

sleepunder

sleepunder noun: a kind of playdate, similar to a sleepover, in which a child stays at their friend's house until relatively late and then returns home.

Noun

sleepunder (plural sleepunders)

  1. (neologism) A kind of playdate, similar to a sleepover, in which a child stays at their friend's house until relatively late and then returns home.
    • In many households, it's lights out for the traditional sleepover. Instead, more families are opting for sleepunders - a surprisingly controversial phenomenon that has raised the eyebrows of some parenting experts even as sleep specialists rejoice.2013 December 17, Lini S. Kadaba, “Is the sleepunder taking the party out of slumber party?”, in The Philadelphia Inquirer, Philadelphia, P.A.: The Philadelphia Inquirer, LLC, →ISSN, →OCLC, archived...
    • And perhaps no scenario tests a parent's vigilance more than the prospect of allowing their child to sleep at another family's home. For some parents, one solution to this is the "sleepunder" — also called a "lateover" — where children come to play, but they don't stay to sleep.2024 January 11, Erin Sagen, “Sleepunders Are a Solution for Parents Who Are Anxious About Sleepovers”, in The New York Times, New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from...
    Synonyms:
    lateover

Synonyms of sleepunder

Forms of sleepunder

pluralsleepunders

Origin of sleepunder

From sleepover, with "over" replaced with its antonym "under".

Questions about sleepunder

What does sleepunder mean?
Sleepunder means a kind of playdate, similar to a sleepover, in which a child stays at their friend's house until relatively late and then returns home.
What part of speech is sleepunder?
Sleepunder is a noun.
What is the plural of sleepunder?
The plural of sleepunder is sleepunders.

Words near sleepunder in the dictionary

  1. sleeptalker
  2. sleeptalkers
  3. sleeptalking
  4. sleeptalks
  5. sleeptime
  6. sleepunder
  7. sleepunders
  8. sleepwaker
  9. sleepwakers
  10. sleepwaking
  11. sleepwalk

Source and license

Adapted from Wiktionary: sleepunder (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-sleepunder.wav.

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