Not all sofas are made equal, and the real difference often lies beneath the fabric. What keeps a sofa comfortable year after year isn’t the style or the stitching, it’s the upholstery foam inside. Foam takes the hits, absorbs the weight, and keeps its shape long after other materials start to give in. Think of it as the unseen athlete in your living room, competing every day in the “sofa endurance” games. The Long-Distance Champion: High-Density Foam High-density upholst
