Opened once and then returned. Brand new, unused. Sleep comfortably, just like in your own bed. A 10cm-thick self-inflating mattress. ■ Comfortable sleep with 10cm-thick polyurethane foam. ■ Self-inflating mat that inflates automatically when the valve is opened. ■ The storage case can be used as a simple pump if more inflation is needed. ■ Comes with a convenient storage case for carrying. ● Size when in use: Approximately 200 x 128 x 10 (h) cm ● Size when stored: Approximately φ31 x 70 cm ● Weight: Approximately 5 kg ● Materials: Polyester, polyurethane foam ● Accessories: Storage case