求翻译：通常来讲，每一种类型的床垫都有资深的优点。睡眠专家建议，除了选择床具的外观外，最关键的是搞清床垫的软硬度是否适合自己，让身体说话。其次，床垫下面的支撑结构也最好与床垫材质相匹配，以便给予有力的支撑。是什么意思？

Typically, each of these types of mattresses have veteran benefits. Sleep experts suggested that in addition to select bed appearance, the key is to find out whether the hardness of soft mattress for yourself, let the body talk. Second, the mattress support structure below is the best match the mattress material in order to give strong support.