✨ Brand New, Unused ✨ Instant Purchase OK ✨ Free Shipping ꕀ⋆ Product Description ꕀ⋆ 【Central Indentation Structure for Stable Head Support】This pillow employs a central indentation structure that gently cradles the head. This indentation naturally fixes the head's position, preventing unnecessary head movement during sleep. As a result, it reduces unnecessary strain on the neck and shoulders, supporting the maintenance of ideal spinal alignment from the head to the neck and lower back during sleep. 【ARC Curve Design for a Perfect Fit from Neck to Shoulders】Based on ergonomics, the "ARC curve" is designed after thorough research of the natural curve of the neck. This curve closely follows the transition from the base of the neck to the shoulders, designed to fill any gaps. 【Higher Sides Designed for Both Side and Back Sleeping】The sides of the pillow are designed to be higher than the center. When sleeping on your side, the head is kept at the appropriate height, reducing pressure on the shoulders and arms, naturally guiding the body into a back-sleeping posture, and supporting the correction of an ideal sleeping posture. It promotes smooth turning and reduces the burden on any single point of the body. 【Adjustable Height to Your Preference】 This product has heights of approximately 9cm and approximately 14cm, and you can choose your preferred height by using the adjustment sheet. You can adjust it to suit your physique and physical condition on the day, so it can be shared with family members. It's a flexible design that achieves "just right" for each person. 【Soft Gauze Material for a Comfortable Night's Sleep】The included pillowcase uses a soft, breathable gauze material that is also used for babies' skin. Furthermore, it has excellent moisture absorption and release properties, so it's cool and comfortable even on hot summer nights. It is washable and easy to keep clean, making it safe for those with sensitive skin. Please experience the exquisite feel that gently envelops your sleep every night.