A heating pad comprises a mattress body, an inner mattress cover, an outer mattress cover and a plurality of heating sheets.The inner mattress cover is arranged on the mattress body.The outer mattress cover is arranged on the mattress body and the inner mattress cover.The heating sheet is arranged in the inner mattress cover at intervals with each other. Each consistent heating sheet comprises a heating body which can generate heat energy when being powered and comprises a plurality of first material layers and a plurality of second material layers. Each second material layer is located between the adjacent second first material layer, the first material layer is made of graphene, and the second material layer is made of silicon.一種發熱墊，包含一床墊本體、一內層床墊套、一外層床墊套及多個致熱片。內層床墊套套設於床墊本體。外層床墊套套設於床墊本體及內層床墊套。致熱片彼此間隔地設置於內層床墊套，每一致熱片包含一發熱本體，發熱本體於被供電時能產生熱能且包含多個第一材料層及多個第二材料層，每一第二材料層位於相鄰二第一材料層之間，第一材料層是由石墨烯製成，第二材料層是由矽烯製成。
