Nice example - thick coconut fiber on top of lot of small individual springs. People who make this usually had severe issues in physics at school.
Most modern mattresses are made by managers and marketing geniuses.
Usually "orthopedic" word means that mattress will damage your spine in some especially sadistic unique way.
Same goes to bed itself - orthopedic ones usually cause most damage to costly mattresses and to your spine.
Always remember - the less uncontrollable shit you have in system - the better.
Body generates lot of humidity over night. For me personaly ventilation is most important factor rendering lot of products unacceptable.
Some useful things about real capitalism and mattress industry
Another mattress factory
Simple 3 layer foam mattresses
Natural things
On bonnel springs
Some types overview, not very correct, but useful
Making spring blocks
In Australia the lowest density (weight) foam made is 15 kilograms per cubic metre and the average density of foam sold is around 19 kilograms per cubic metre. 30 years ago the average density sold was about 24 kilograms per cubic metre but as price is such an important issue in the Furniture Industry (because of competition internally and imports externally) many manufacturers are using more and more low quality foam.. This is a big pity – however a sign of the times.
Capitalism is extremely bad and inefficient thing.
In most applications as I said, 35kg/m3 minimum must be set and for mattresses it must be from 40kg/m3 up to 60kg/m3. This is real way to not produce lot of waste, contrary to idiotic claims of processing of degraded and used foam (very costly and you can do only limited thing from it, usually of low quality).
What happens to cheap foams in mattress?
And note that 35kg/m3 is not really very dense foam, good dense foams are 50-65kg/m3.
Some more latex manufacturing
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