Sleep is crucial for physical and mental health. It allows the body to repair cells, strengthen the immune system, and restore energy. Lack of sleep can lead to fatigue, poor concentration, and increased risk of diseases. Adults usually need 7–9 hours of sleep, while children require more. Good sleep improves mood, productivity, and memory retention. Healthy habits like avoiding screens before bed, maintaining a consistent sleep schedule, and keeping the bedroom comfortable enhance sleep quality. Prioritizing sleep is essential for overall well-being, as it directly affects daily performance and long-term health.