Do sofa bed seats under the mattress area become uncomfortable over time compared to regular sofa seats? Sofa bed seats under the mattress area often become less comfortable over time compared to regular sofa seats. This is because sofa beds have internal mechanisms and mattresses beneath the seat cushions, which can create a firmer or uneven feel as the cushions and support structures wear down with use. Regular sofas are made solely for sitting and generally maintain their comfort longer, as they are not designed with fold-out frames or mattresses inside. Modern sofa beds have improved in design, but they often still lack the durable seating comfort of a standard sofa over time. Back to blog