The part where the load on the user's head is applied and the pillow adhere to each other, the body pressure is well dispersed, the occurrence of stiffness in the shoulder and neck is suppressed, the number of times of turning over is reduced, and good sleep is obtained. Provided are a pillow, a pillow manufacturing method, a pillow manufacturing system, a computer program, and a sleeping posture measuring device. The pillow (1) is formed by a 3D printer, and has a shape based on at least a bone shape of the user including a portion from the back of the head to the cheek or a portion from the face to the cheek, and a sleeping posture of the user. It has a core part (5) and a support part (4) for supporting the core part (5).
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