Adults generally need about 7 to 9 hours of sleep for optimal health. Sleep is essential for various bodily functions, including cognitive performance, emotional well-being, and physical recovery. Insufficient sleep can lead to fatigue, decreased concentration, and impaired decision-making abilities. It also affects metabolic health, leading to issues such as weight gain and increased risk of chronic diseases. Prioritizing adequate sleep contributes significantly to overall well-being, ensuring that the body can properly recover, maintain energy levels, and support a healthy immune system.