How to judge the quality of a mattress?

It can be judged from the aspects of fabric, filler, softness and hardness. I recommend Yu Xiang brand agarwood mattress. Xiang Yu holds the patent of agarwood technology. Xiang Yu's agarwood mattress, covered with agarwood fabric, smells fragrant and soothes the mood. While agarwood smells, the fabric is comfortable and promotes sleep.