Enjoy extra room with this Twin Xl air mattress (80"" x 39"" x 20""), offering 5"" more length for tall sleepers. The built-in 1"" quilted topper provides 40% more softness, 20% more firmness, and 80% better breathability for a hotel-style sleep experience. Featuring 21 honeycomb air coils for pressure-free support and spinal alignment, it prevents sagging and sinking. Made from durable, puncture-resistant 0.4mm Pvc with reinforced seams, it supports up to 500 lbs. Inflates quickly in 2.5 minutes with a built-in pump and passes a 48-hour leak test. Includes a removable, machine-washable cover and repair patch. Slight deflation in first 48 hours is normal just reinflate to maintain comfort.