"It hasn't been studied much, but some scientists say that yes, ants do sleep. It's not exactly like human sleep, but ants seem to go through cycles or periods of rest and inactivity in which their body functions and brain activity slow down. It may seem like ants don't sleep because some part of the colony is always busy, but individual ants do need to rest."Source: Ants.

Queen ants are usually the largest ants in the colony, but the size of the queen will vary with the species of ant. For example, carpenter ant females can be up to 3/4 inches long, while pavement ant queens are only 1/10 inch long. Carpenter ants can be 0.3 to 1.0 in or 0.76 to 2.54 cm.

The number of baby ants that a queen produces varies with the species of ant. Queen odorous ants lay one egg every day, while queen pavement ants lay five to twenty eggs per day.