... pad and 2cm natural latex, 2.3mm durable Bonnel spring. compressed mattress:high-grade pure cotton fabric,pillow top consist of ... ,good for health,2.3mm durable Bonnel spring.can be compressed packing. Available size: Twin size:38''*75''Twin XL size ... rigid quality control system, the spring we use can be compressed to 3.5cm and rebound to its original height, so ...