Specifications:? Material: Waterproof 190T Polyester? Dimension:71 x 45 x 1” (L x W x H)? Packed Size: 23 x 5” (H x Dia.)? Each Mattress Size:71 x 23” (L x W)? Pillow Size:23 x 51.6” (L x W)? Foam Thickness:1/4”? G.W.: 4.6 LbPackage Included:? 2 x Air Mattresses? 2 x Carry Bags? 2 x Elastic Bands? 4 x Repair PatchesPlease Note:? There are two samples and the positions of the gas nozzle are different. It will not affect the use for the function and the dimension are the same. It is delivered randomly.HOW TO USE THIS SLEEPING PAD?? 1. Take the pad out of its carrying bag. ? 2. Open the valve and place the pad flat and it will auto-inflate. ? 3. Closing the valve to prevent the air from rushing back out once you lay on it.? 4. Inflate the pillow by your mouth or air pumps. ? 5. Then you can lay on it with comfort and warmth.HOW TO PACK UP THIS SLEEPING PAD?? 1. Open the valve. Roll the mattress up quickly. You can kneel on the pad as you rolling it. ? 2. Close the valve. Unroll the sleeping pad to its full length again. ? 3. Roll the pad up another time. Keep the valve closed. ? 4. Open the air valve again. Continue to roll up the mattress. ? 5. Screw tighten the valve and then hitch the pad with the black elastic band (included). ? 6. Then you can fit it right in your stuffed sack.