I think the question is whether perception of firmness comes from "this moves less when I sit on it" or from "this pushes back a lot when I sit on it", and those give different answers.
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i'm trying to figure out whether i'm a full idiot now for the same person, any mattress will always push back with the same force, because it's just acting with equal and opposite force to the person in every case, right?
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This is exactly what registered in my mind. I just thought about how vehicle suspension feels, and it makes perfect sense.
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Imagine an ant on a mattress. They would find it indistinguishable from a solid surface, right?
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Sometimes I think you play dumb. ;)
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Question: what kind of mattress do you have? Because I think the right answer is different depending on whether it has springs or not
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1/ It seems to me like a redundant question because it depends on the mattress. If you're sufficiently heavy to increase density of the mattress or taution of the springs to the point where they no longer provide cushion then it will feel firmer by definition.
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2/ if you're not sufficiently heavy (and assuming a linear compression/taution rather than curved) then you wil notice no difference beyond bias. "sufficient" as mentioned above is entirely mattress dependent on its range and quality.
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Something feels soft if it has a lot of give. A heavy body more easily deforms a mattress. A light body won't make as much of a dent, it'll feel harder.
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this is the correct answer
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