What Is Deep Sleep, and Why Is It So Important?
Deep sleep, also called slow-wave sleep, is the most restorative stage of your sleep cycle—a biological necessity for physical recovery, memory consolidation, and immune function. Without enough deep sleep, you wake up fatigued, mentally foggy, and vulnerable to chronic health issues. Yet, in our fast-paced world, nearly 1 in 3 adults fails to get enough … Read more