This clever double airbed features the Dual Chamber offering two separate air chambers so that each user can define their own level of comfort. This bed has a reduced amount of phthalates, making it kinder to the environment and kinder to you. Advanced Double Lock™ Valve System: Two valve sealing points guarantee a leak-free product. Makes inflation and deflation fast and simple. Greater Puncture Resistance: Strong PVC providing a more puncture resistant airbed. Dual Chamber Construction: Two chambers provide individual comfort control allowing each sleeper independent firmness.