Selecting a high-quality pocket spring mattress requires balancing support, durability, and comfort. Focus on the spring count (typically 600-1000 for standard queen sizes) and the wire gauge (1.8mm to 2.3mm); a lower gauge indicates a thicker, firmer wire. Ensure the mattress features independent pocket coils to minimize motion transfer, which is a key selling point for hospitality and residential markets. Additionally, verify the foam density used in the comfort layers, aiming for at least 30kg/m³ to prevent premature sagging.