English edit

Etymology edit

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

Noun edit

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.
    Synonym: lateover
    • 2013 December 17, Lini S. Kadaba, “Is the sleepunder taking the party out of slumber party?”, in The Philadelphia Inquirer[1], Philadelphia, P.A.: The Philadelphia Inquirer, LLC, →ISSN, →OCLC, archived from the original on 2023-12-28:
      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.
    • 2024 January 11, Erin Sagen, “Sleepunders Are a Solution for Parents Who Are Anxious About Sleepovers”, in The New York Times[2], New York, N.Y.: The New York Times Company, →ISSN, →OCLC, archived from the original on 2024-01-17:
      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 12, Martha Williams, “Death of the slumber party: Anxious parents are collecting children from ’sleepunders’ at 2am or even staying with them to ensure they’re safe”, in Daily Mail[3], London: DMG Media, →ISSN, →OCLC, archived from the original on 2024-01-12:
      The Texas-based company describes a sleepunder as a 'faux sleepover - where you do all the same 'really fun' activities that you would do at a typical sleepover, except when it's time to go to sleep everyone goes home.