noun. ['ˈsliːˌpoʊvɝ'] 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).
1. Noun, singular or mass It was just a hotel sleepover in the middle of an otherwise regular week: a treat to myself, for myself, from myself. 2. Adjective During a sleepover situation, your child can change the Goodnites when he changes his clothes in the morning.