Ultra Foam, as the name implies, is a brand name given to a particular type of foam that exceeds certain High Performance and Durability Standards. Such tests include:

• Flex Fatigue Tests 

• Tensile Strength Tests

• Compression Modules Tests

• Density Tests

• Aging Tests

Simply put, before the foam is accepted, it withstands extensive bending, stretching and abuse, far beyond the normal wear and tear of many lifetimes.

All foam mattresses are not the same.  

As you've seen, many tests are used to determine the quality of  foam. Density is by far the most important guide. Many  people  relate density to firmness, and that  is totally incorrect. Density is measured by the pounds per cubic foot, (PCF)  Other foam  mattresses can be extremely firm with very little density; causing it to break down very quickly.