Simmons mattresses can be divided into three types: latex mattresses, spring mattresses and palm mattresses.

there are two kinds of latex mattresses: first, if one side is patterned and the other side is not, the patterned side is the front side, and the non-patterned side is the reverse side. Second, divide the size of the hole. Small holes are positive, and large holes are negative.

spring mattress: usually one side is harder and the other side is softer. There is no obvious difference between positive and negative, depending on which side one likes to sleep. However, the mattress should be turned over and turned around frequently, so as not to press the spring into deformation after sleeping for too long.

Palm mattress: If it is a thick mattress, it can be distinguished in the same way as a spring mattress. If it is a thin palm mattress, there are usually signs on the mattress to indicate the front and back.