The invention discloses a combined type mattress. The top of a cotton layer is in contact with air, the bottom of the cotton layer is connected with the top of a shelf, and the bottom of the shelf isconnected with a bed frame; the cotton layer is made of bionic honeycomb cotton; the bottom of the shelf is provided with two sliding rods parallel to the long sides of the shelf; the two sliding rods are parallel to each other, and each sliding rod is provided with a blower which is in sliding fit with the sliding rod; the air outlet of each blower is opposite to the bottom of the cotton layer directly above the blower; a temperature sensor arranged on each blower comprises a metal shell, an input power line, an output power line, an input conductive sheet, an output conductive sheet, an inclined sliding plate, a conductive rolling ball and a wax block; the right end of each inclined sliding plate is connected with the right side wall of the corresponding metal shell; and the left end ofeach inclined sliding plate is connected with the left side wall of the corresponding metal shell. The combined type mattress adopting the design not only has a strong breathable effect, but also hasa good ventilation effect.