Many seniors struggle with fragmented sleep, waking up feeling unrefreshed despite spending hours in bed. This lack of deep, slow-wave sleep prevents the brain from clearing metabolic waste and the body from repairing tissues, leading to cognitive fog and physical fatigue the following day. Deep sleep is more than just closing one's eyes; it is a physiological process regulated by core body temperature and the absence of blue light. As we age, our circadian rhythm can weaken, making it harder for the body to signal the onset of restorative delta waves which are crucial for cellular regeneration and immune health. At MeSook, we recommend the 'Cool-Dark-Quiet' triad: keeping the room at a steady, cool temperature and using dim, amber-toned lighting sixty minutes before bed. Pairing this with a light, protein-rich snack can stabilize blood sugar throughout the night, ensuring your body stays in the deep sleep phase longer for a truly revitalized morning. 🌙