How to measure the softness and hardness of the mattress

How to call soft and moderate? The easiest way to measure it is to lie flat and stretch your hands from the neck, waist and under the hips to the thighs to see if there are any gaps. The method is to try to see if there is any gap between the concave part of the body curve and the mattress. If not, it proves that the mattress fits perfectly with the natural curve of the neck, back, waist, hip and leg during sleep. It can be said that it is moderately soft and hard.

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