Quality tested 26 gauge (0.66mm) super soft Quilted Velvetaire waterproof flocked top and sides with 16 gauge (0.41mm) bottom. Weight capacity: 600 lbs. (273kg) total, 300 lbs per person max. Dual-chamber construction: I-Beams in bottom & Coil Beams in Upper Chamber. Surrounded on top and sides with a layer of inter-connected air cells to ensure gradual, smooth air flow across the entire surface of the bed Approximate Inflated Size: 60" x 80" (152cm x 203cm) queen-sized mattress is raised 20" (51cm) from the floor for convenience. (All measurements are approximate) Built-in 110-120 Volt AC fast fill electric pump for home use only. Inflates in about 3 minutes, Deflates completely for travel and storage.