The price is primarily driven by material quality and functional integration. High-end models often feature anodized aluminum frames for lightweight durability compared to heavier steel. Key functional drivers include 3-in-1 designs (bedside sleeper, standalone cradle, and travel cot), adjustable height levels (usually 5-7 positions) to match parent beds, and breathable 3D mesh fabric for airflow. Advanced features like automatic rocking sensors, integrated music boxes, and mosquito nets will also increase the unit cost.