Definition of High-Density Foam (HD Foam)

Meaning of the Term as it Pertains to Mattresses

What is High-Density Foam?

Foam with high weight per cubic foot, high-density foam has a strong cell structure, which makes the material highly durable and long-lasting. Shoppers interested in purchasing mattresses that will last for years to come often choose mattresses made with high-density foam. Many HD foam mattresses come with warranties of 15 years or more. HD foam also tends to offer more consistent comfort and better support than less dense alternatives.

Some shoppers assume high-density foams are inherently firm. In reality, HD foams can feel as soft or as firm as manufacturers wish to make them. Density indicates quality and durability rather than comfort level. ILD (initial load deflection) and IFD (initial force deflection) are figures which will indicate how soft or firm foam feels.

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