1. an occasion when a child stays overnight at a friend’s house

Examples

• My daughter is going to a sleepover at her best friend’s house tonight.
• We’re planning a sleepover for my birthday party this weekend.
• The kids stayed up late telling stories during their sleepover.
• She packed her pajamas and toothbrush for the sleepover.
• The sleepover was so much fun that they didn’t want to go home.
• Parents dropped off their children at 6 PM for the sleepover.