What does 75kg/m3 mean in relation to a memory foam mattress?

Question

What does 75kg/m3 mean in relation to a memory foam mattress?

Answer 1

75 kg= 75,000 g

3 m= 300 cm

         3,000 mm

Answer 2

Memory foam mattresses are designed so that, it will return to its normal contours when the bed is vacated...It 'Remembers' what it was like before it was slept on. (hence 'Memory Foam').

75kg/cu.metre will not be the density of the foam, it is probably the mass it will carry per meter cubed.

Answer 3

It's the density of the foam. It means that 1 m3 (1 cubic metre) would weigh 75kg.

The higher the figure, the more dense the substance.