To provide a concrete pillow capable of achieving the purpose of "forming the normal S-shaped curve of a vertebral column by eliminating the state that a shoulder part is floated and keeping the cervical vertebrae in a natural state".

The pillow is provided with a first support part 2 for supporting a head part, a second support part 3 for supporting the cervical vertebrae, and a third support part 4 for supporting from the first thoracic vertebrae to the third thoracic vertebrae or the fourth thoracic vertebrae. The second support part is projected more than the first support part and the third support part and formed. The third support part is formed by almost linearly reducing the height from a proximal end region for supporting the first thoracic vertebrae side to a distal end region for supporting the third thoracic vertebrae or fourth thoracic vertebrae side.