[ sleep-oh-ver ]
See synonyms for sleepover on
  1. an instance of sleeping over, as at another person's house.

  2. a person who sleeps over.

Origin of sleepover

First recorded in 1970–75; noun use of verb phrase sleep over Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use sleepover in a sentence

  • Then he decided to sleep over it; and the next morning he wakened, and read it again—with a shock of surprise.

    Love's Pilgrimage | Upton Sinclair
  • It was an accidental sleep-over; she had not planned it, and circumstances would take care of themselves.

    The Man Between | Amelia E. Barr
  • If anything happened because you went to sleep over the key, you'd have them on your mind all your life, don't you know—forever.

    The Nerve of Foley | Frank H. Spearman
  • And of course, according to all baby precedent, he ought to have gone off into a sound sleep over it.

    East Lynne | Mrs. Henry Wood
  • So, stifling his longing to go home and to see his people, Peter decided to sleep over it before taking any definite steps.

    The Come Back | Carolyn Wells

British Dictionary definitions for sleepover


/ (ˈsliːpˌəʊvə) /

  1. informal, mainly US an instance of spending the night at someone else's home

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Idioms and Phrases with sleepover


Spend the night as a guest in another's home, as in Karen's friend Wilma is going to sleep over tonight. [Second half of 1800s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.