Built-in Pump for Fast InflationWith the built-in foot-operated air pump, you can inflate the camping mattress fast in 2 minutes. No need to pack an extra pump to save backpack burden, and worry about batteries on your trip. Note: Please make sure toclose the 2 valves on the back of the pillows before pumping air. Open the valves under the pillows then the sleeping mat could be deflated in seconds. Double Size & Extra ThicknessThis double camping mat is designed with a super large size: 76 X 52 and 4 inches extra thickness after inflating, which provides generous space and strong support for 2 adults to sleep comfortably. Perfect campingaccessories to share with your girl/boyfriend, wife/husband, kids, friends, and dogs. Ergonomic Wave DesignThe 3D ripple structure separates this double camping bed into a bunch of small cushions, which distribute body weight evenly without bulging and sloshing around like a regular camping air mattress. Together with the integrated pillows, our double sleeping pad fits ergonomically to your body and provides maximum relaxation. Waterproof & Scratch-resistant MaterialsThe fabric layer of this camping sleeping pad is made of thickened 400D nylon that protects the camping roll mat from scratches and helps to hold your body from sliding. TUP Inner Coating seals air in place,preventing air leakage and water infiltration. Easy Storage & PortableThis camping mattress pad is compact to be easily folded back in the 12 X 5.5 carry bag, 3lbs super light weight is portable to carry in your backpack along with other camping gear. Must have accessories for camping, hiking,picnic, and any indoor or outdoor activities.