{i} staying as a guest overnight at someone's house; instance in which friends stay overnight at the same house (often in the case of a children's party)
the act of spending the night as a guest in anothers house, especially the participants are children
A sleepover is an occasion when someone, especially a child, sleeps for one night in a place such as a friend's home. a party for children in which they stay the night at someone's house
an occasion of spending a night away from home or having a guest spend the night in your home (especially as a party for children)