This is a sleep-enhancing pillow featured in the magazine an an! It's a low-rebound pillow designed based on the physique of Japanese people. With its concave, hollow design, your head is stabilized, putting no stress on your head, providing a feeling of weightlessness. The arched shape fits the curve of your shoulders, naturally guiding your head into a curve just by resting it, making your neck and shoulders comfortable – a great item for improving sleep quality. It pursues a perfect fit and achieves the ideal firmness, using relaxing urethane material. It slowly sinks in, conforming to the shape of your head, and gently envelops you. Its unique three-dimensional shape and sleep-enhancing materials support the natural curve of your neck and shoulders in any sleeping position, without putting any strain on them. When sleeping on your back, the hollow design and recessed shape prevent pressure on your head, stabilizing your sleeping posture. When sleeping on your side, the hollow design prevents pressure on your temples and ears, accommodating a comfortable side-sleeping position. The height of the neck support is different on the left and right sides, so you can choose the one that best suits your body type. It has a soft-to-the-touch, breathable original cover. It's also treated with antibacterial and deodorizing properties and is easy to care for in the washing machine. The pillow itself is not washable. We recommend air drying. How about changing your pillow for a better night's sleep? (^ ^) S-133-23