Foam’s density is measured in pounds per cubic foot (PCF).Īt the low end of the spectrum, a cubic foot of memory foam will have a rating of 1.5, meaning it weighs 1.5 pounds per cubic square foot. Most things have density measurements or ratings, including memory foam, which is sometimes referred to as viscoelastic foam. That’s because feathers are less dense than steel.įor you visual learners, it’s represented by the equation: Density = Mass/Volume A truckload of feathers, for example, will weigh less than a truck full of steel. We all learned about density during school, but we probably never thought about how it applies to a bed.Īs a quick review, density is a measurement of how heavy it is compared to its size.
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