Soft Filling and Breathable Cover: Made with plush polyester filling and a smooth outer cover; the pillow keeps its shape night after night while remaining gentle on skin Ergonomic Hole Design: The central recessed ear hole creates a pressure-free zone for your ear, allowing side sleepers to rest comfortably without putting stress on piercings, cartilage, or sensitive ear areas Adjustable Firmness: The removable inner filling can be easily added or reduced through the hidden zipper opening, letting you customize the pillow height and firmness to match your personal sleeping preference Closure Design: Thoughtfully designed with a concealed closure that keeps the inner filling secure and makes removing and washing the outer cover effortless, ensuring the pillow stays fresh and hygienic Applicable Scenarios: Ideal for daily side sleeping at home, post-piercing recovery, ear sensitivity, wearing hearing aids or earphones, short naps at the office, and travel use on planes or in cars