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The Cornell Test Explained


Yes, it’s shaped like a human’s rear end and it pounds up and down in the same spot, over and over again. It might be a funny-looking test, but it’ll make a wimpy mattress wish it never stepped under this keister crusher.


Capable of accommodating twin- through king-size bedding, the Cornell machine evaluates a 100,000-cycle test of the platen forced 230-lbs. onto the bedding. Readings are taken at 200, 6,000, 12,500, 25,000, 50,000, 75,000, and 100,000 cycles.


The data collected is then used to calculate the change in support firmness and preload height. There are no pass/fail parameters in the current ASTM procedure, but the historical guidelines are referenced to put results in perspective.


Learn more  about our testing capabilities.

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Mark Kinsley

Mark Kinsley is Leggett & Platt's Staff Vice President of Marketing for the Bedding Group. Outside the office he enjoys spending time with family, mountain biking, hiking, and snow skiing. Connect with Mark on Twitter via @markkinsley.