2) INTEX Twin Ultra Plush Air Bed Raised Airbed Mattress & Pump Kit | 67951E Set of two twin mattress saves you time and money Mattress is raised 18" (46cm) from the floor for convenience. Easy to adjust to your desired level of firmness with the built-in pump Inflates in 2.5 minutes (Inflation time varies by desired firmness) Double-layered S-Beam construction provides stability and comfort