Do Ants Sleep?

Oscar: Do our ants awake in the night? So do they wake up at nighttime and are they active at night? Well, ants are pretty much a 24 hour business. There can be working at any time, day and night, feeding the family. Oscar: If I were an ant and I found that caterpillar and I wanted to take it back to the nest but needed some help, I would send out a chemical  and that's how my fellow sisters would know to find me for help.