AiR AI0010 – a conditioning mattress for athletes. Training, nutrition and sound sleep are equally important to maintain good physical condition. For ideal sleep, your shoulders or lower back should not be subject to weight bearing. This urethane foam mattress features patented triple-layered horns. Each color of layers represents a different firmness and function. Hundreds of horns sink along your body to keep your natural spine curve while you sleep on AiR AI0010. Your weight is distributed evenly over the horns to make you feel like floating in the air. You may choose either “HARD” model or “BASIC” model according to your BMI.