Nucu | 1,433 followers on LinkedIn. Giving Sleep a Voice to Power Growing Minds: Supporting Development and Wellbeing | Nucu (nuku: Finnish for "sleep") | Giving sleep a voice to support growing minds from childhood to young adulthood. At Nucu, we believe that sleep is the most powerful tool for a developing brain. It is the foundation for a child’s growth, focus, and happiness—yet millions of kids and teens struggle with bedtime routines, restless nights, and tired mornings.