Did you know that chickens can sleep with one eye open and one eye closed? Are they asleep or awake? Actually both! They can let one half of the brain sleep, while the other half stays awake in case of danger. After a while they may change sides so each half of the brain gets some sleep. If they feel quite safe, they can choose to close both eyes and rest completely. Chickens also enjoy taking very short naps when they need a break during the day, but unlike us they can go a long while without sleep if necessary. They even dream – but nobody knows what they dream about!