The choice of softness and hardness is very personal, and there is no absolute between the two. Therefore, when purchasing a mattress, we recommend that you try out a variety of mattresses with different softness and hardness to find the best one through personal experience. A mattress that suits you. *If you are an elderly person, we do not recommend that you choose a mattress that is too thick and soft, because you will inevitably turn over when sleeping at night. A mattress that is too thick and soft will cause your waist or elbows to move. It takes more effort to find the key points of the mattress to turn or get up.