GET A GOOD NIGHT'S REST: SleepLux's twin air mattress is designed with proprietary I-Beam construction. Composed of 3 durable layers, this inflatable mattress will keep its form and stay firm throughout the whole night. SUPERIOR CONSTRUCTION: Tritech airbeds promote healthy sleeping postures. A dense polyester mesh core is placed between two durable layers of PVC providing next-level back and shoulder support. INFLATES AND DEFLATES WITH ZERO EFFORT: The built-in pump quietly inflates the air mattress in just 5 minutes with just a single push of a button. It won't lose air, so you don't lose sleep.