This full-foam 13-cm-deep mattress has been designed with an open-cell next-generation Reflex Foam, which does not contain any springs, providing medium-firm comfort. The reflex foam is made up of thousands of air bubbles that expand and contract when the sleeper lays on the mattress for firm support. The low-density reflex foam provides both body molding and bounce-back properties, which offer the sleeper a firm yet hugely comfortable sleeping experience while always returning to its natural shape when it is not in use. With a cool, soft, stress-free breathable fabric for both the top panel and the border, this maintains any excess heat, keeping the sleeper at room temperature for a cool, fresh, relaxing night’s sleep. The mattress will be delivered, compressed, vacuum packed, rolled, and boxed for comfortable and easy delivery, making the unpacking of the mattress simple for the customer. Once the mattress has been taken out of its packaging, please allow 24 to 48 hours to allow it to expand to its original size.