A mattress device is provided in the present disclosure. The mattress device includes an elastic module, a control module, an edge pressure detecting module, and an inner pressure detecting module. The edge pressure detecting module includes a plurality of pressure detecting units and electrically connected to the control module. The edge pressure detecting module is located at the two sides of the elastic module. The edge pressure detecting module is used for detecting an edge pressure parameter of the elastic module. The inner pressure detecting module includes a plurality of pressure detecting units and electrically connected to the control module. The inner pressure detecting module is located at the central area of the elastic module. The inner pressure detecting module is used for detecting an inner pressure parameter of the elastic module. The control module determines a lying-down data of a user.本發明提供一種床墊裝置，其包括一彈性模組、一控制模組、一邊緣壓力感測模組以及一內側壓力感測模組。邊緣壓力感測模組包括複數個壓力感測單元，邊緣壓力感測模組電性連接控制模組，設置在彈性模組的兩側區域，邊緣壓力感測模組用於偵測彈性模組的一邊緣壓力參數。內側壓力感測模組包括複數個壓力感測單元，內側壓力感測模組電性連接控制模組，設置在彈性模組的一中間區域，內側壓力感測模組用於偵測彈性模組的一內側壓力參數。控制模組根據邊緣壓力參數以及內側壓力參數，判斷一床墊使用者的一臥床資訊。
