We offer ten densities of foam mattresses to choose from. Prices start dirt cheap, up to rigid, long lasting (20 years) foams. Our EconoFlex foam grade is used in the manufacturing of 90% of all sofas—we don't recommend this grade except for applications that don't get used a lot. Take time to read the descriptions of our foam found at the bottom of the quote page. Keep in mind that thinner foam is softer and thicker foam is firmer.