Functional pillow that can be adjusted in height and induces comfortable sleep

The present invention relates to a pillow that has a comfortable headrest, prevents pushing when lying down, and has an adjustable height. In particular, the pillow protects the neck by adjusting the height according to the lying position, depending on the part of the pillow that touches the head and the height of the shoulder. At the same time, the parts that the head touches have different tactile sensations and also antibacterial and humidity control can be performed. A pillowcase has a first space filled with particles and a second space at the bottom that is opened and closed with a zipper. 본 발명은 머리받침이 안락하면서 베고 누웠을 경우에 밀림이 방지되고 동시에 높이가 조절가능한 배게에 관한 것으로, 특히 눕는 자세에 따라서 높이 조절에 의하여 베개의 머리와 닿는 부분과 어깨의 높낮이에 따라서 목을 보호하고 동시에 머리가 닿는 부분이 서로 다른 촉감을 갖도록 하면서 항균이나 습도조절이 가능토록 한 것이다.