Nursing mattress

The utility model discloses a nursing mattress which comprises a mattress main body, the mattress main body comprises a first main body, a second main body and a third main body, the third main body is arranged at one end of the first main body, and the second main body is arranged at the other end of the first main body. Connecting assemblies are symmetrically arranged between the side faces of the two ends of the first main body and the third main body and between the side faces of the two ends of the first main body and the second main body. Each connecting assembly comprises a first rotating block, a connecting block, a connecting groove, a second rotating block, an embedded block, a blocking pile and a spring groove. Through the designed structures such as a first rotating block, a connecting block, a connecting groove, a second rotating block, an embedded block, a blocking pile and a spring groove, when the device is not used, the device can be folded, a third main body is turned over to the top of a fi