Sleepunder

"Sleepunder" in a Sentence (3 examples)

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.

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.

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.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.