A sleepover, pajama party, or a slumber gathering are all synonyms for the beloved birthday tradition that pre-teens and teenagers, in particular, have cherished for years. It's a night dedicated to staying up late, stuffing oneself with pizza and junk food, indulging in the latest gossip, playing games, and watching movies until the wee hours of the morning. Although it's usually friends who get together for a slumber party, it's not uncommon for family members to enjoy one as well. Whatever you choose to call it, whether it's a slumber party, a pajama party, or a sleepover, it's a wonderful way to bond with those close to us.