What makes a firm mattress firm?
Jul 10, 2010 2:54 PM
Joined: Jul 10, 2010
Points: 1
It's obvious that different people and companies have different ideas of what firm means. 

Even a mattress you lay on in the store may feel "firm" but then two month later it's sagging.

So I was wondering what makes a firm mattress firm. Is it number of coils? Thickness of coils?

Thanks.

Re: What makes a firm mattress firm?
Reply #2 Jul 11, 2010 2:23 AM
Joined: Dec 17, 2009
Points: 850
i would say you are mostly right that initial firmness is not directly related to a bed becoming softer and sagging.  its the type of materials used and how well it is all put together which makes the biggest difference.

in a coil mattress the construction varies so much from one to another that you cannot concretely say what makes a firm bed, firm.  Usually its from a lack of upholstery...most all coils by themselves are pretty firm with only minimal padding.  But yes, higher coil count in the same thickness of wire would increase firmness, or simply using a thicker wire.  Thickness of the wire has a more dramatic effect on the firmness level than the spring count alone in most cases.

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