Though sleepovers exist past the tender years the term is generally used to describe when your mom or dad or other guardian lets one of your friends sleep at your house or apartment. Sleepovers usually consist of childish gluttony like eating treats and watching movies. The combination of which add to the overall mischief of the night. So fun when you're little. As adult sleepovers of the non-sexual nature are usually a pain in the ass are best avoided with the cab ride home.