We have carefully selected the foam that we put in our 100% polyurethane mattress. We use a 1.8 lb. foam which is very durable and provides a comfort that most foam mattresses do not.
The Economy Foam uses a solid 5.5" 1.8lb 31ILD polyurethane core that will support an adult up to 240lbs. Lighter sleepers will find this mattress to feel fairly firm while heavier sleepers will find it to feel medium firm.