New, unopened item! (Reference) Amazon price: 2,999 yen The shipping label will be affixed directly to the box for shipping. [No Neck Pain & Ergonomic Design for Ultimate Fit] Designed to address the common complaint of "neck discomfort upon waking." Its 3D structure supports the head, neck, and shoulders without gaps, maintaining the natural S-curve of your neck during sleep. By avoiding unnatural postures, it facilitates clear airways, promoting smooth breathing and deep sleep! [60D High-Density Low-Rebound Material] The core of this pillow is made of 60D high-density low-rebound urethane, known for its durability and shock absorption. Finer than ordinary pillows, it slowly sinks in response to the weight of your head. The exquisite balance between firmness and softness evenly distributes body pressure, reducing strain on your neck and shoulders during sleep. It maintains stable support without losing its shape even with long-term use. [Adjustable Height - 2-Way Specification] Sleeping positions and body types vary. This product features a "height adjustment" design with different heights on the front and back (6cm/10cm). Simply flip it over to choose between the higher or lower side according to your physical condition or preference for the day. It's ideal for side sleeping or traditional back sleeping that require more height, and the lower side is perfect for stomach sleeping. You're sure to find your perfect "peaceful sleep position." [Excellent Breathability & Washable Cover for Year-Round Cleanliness] Because it's something that touches your skin every day, we've focused on cleanliness. The double-layer cover structure, with breathable inner and outer layers, quickly wicks away sweat and moisture, maintaining a dry and smooth feel all night long. The outer cover is zippered for easy removal and machine washing. Even those concerned about dust mites and bacteria can use it hygienically at all times. [Perfect for Gifts for Loved Ones] This comfortable pillow, combining functionality and practicality, makes an ideal gift! *If you notice a urethane odor immediately after opening, please air it out in a well-ventilated area for a few days. Pillow for Neck Pain Relief [Low-Rebound, Ergonomic Design] Pillow for Peaceful Sleep, Shoulder Stiffness Relief, Suitable for Side, Back, and Stomach Sleeping, 60D High-Density, 3D Structure, Sleep Pillow, Breathable, Height Adjustable (6cm/10cm/2 Levels), Washable Cover, Gift, Birthday, Mother's Day, Father's Day Present (50x30cm)