A "tired baby" refers to an infant who is showing signs of fatigue and needs rest. Common indicators include yawning, rubbing their eyes, fussiness, and decreased activity. Babies typically require a lot of sleep, often needing 14 to 17 hours a day, including naps. When a baby becomes overtired, it can be harder for them to fall asleep. This can lead to increased crying and irritability. Parents and caregivers can help by establishing a consistent sleep routine and recognizing the signs of tiredness early, ensuring the baby gets the rest they need for healthy development.