What is ILD?
IDENTATION LOAD DEFLECTION (ILD) is one measure of load bearing and is expressed in pounds load per 50 sq. inches at a given percentage deflection of the latex core. To obtain the value, 50 sq. inc. circular plate is pushed into the latex core top surface, stopping at a given deflection and reading a load or a scale. For example, a 25% ILD of 30 means that it takes 30 lbs. load to compress a 4″ thick piece of latex core to a 3″ thickness. The higher the load, the firmer the latex core. In mattress selection, the ILD will usually be selected based upon a combination of user weight with preference for firm or soft mattresses. Heavier users need a higher ILD otherwise the mattress will start to hammock under their weight and will not last as long. The King Koil Natural Response Comfort Choice Latex mattress solves the problem of deciding what is right for you by having a unique design which provides choice of firmness– firm on one side, plush soft on the other. They do this by sandwichin
