AlwayzAire 18" Queen Airbed with Built-In AC Pump The AlwayzAire Airbed is clearly a step above the competition. The air mattress is designed using a coil beam system, creating a product that is both sturdy and comfortable. By far the best feature of this air mattress is its ability to maintain a perfect level of firmness. A built-in 110-120V~ AlwayzAire pump, along with internal sensors, allows this mattress to monitor its own air pressure and re-inflate as necessary. As you sleep, the mattress quickly and silently replenishes any lost air. You'll never wake up on a semi-deflated mattress again. Queen Airbed Measures: 80" x 60" x 18" ETL approved built-in 110-120V~ AlwayzAire electric pump monitors and maintains air flow throughout the night by re-inflating the mattress to the perfect firmness when necessary Inflates in about 4 minutes Weight Capacity: 661 lbs. The pump includes a USB charging port and a built-in nightlight