This sleeping pad is designed with a double-sided valve that allows for quick inflation and deflation. To inflate, fully open the valve for maximum airflow, turn it to inflation mode, and use the air pump sack to adjust firmness. For deflation, simply flip the valve to deflation mode, roll the mat toward the open valve to release air, and store it in the included bag. The carrying bag conveniently combines both storage and air pump functions, eliminating the need for an extra pump and saving space. Equipped with two handles, the bag ensures easy portability. Crafted from 30D elastic cloth and 75D polyester pongee with an inner TPU coating, the camping mattress is puncture-proof, water-repellent, and wear-resistant, suitable for use on sand, grass, or rugged terrain. Measuring 81" x 29" x 4" (L x W x H), it provides ample space for one person and features a 4" thick high-density sponge filling that delivers excellent spine support for side, back, or stomach sleepers. Its ultralight, portable design and efficient inflation system make it ideal for camping, hiking, backpacking, picnics, and sunbathing. Additionally, the sleeping pad offers great insulation and warmth, making it suitable for all seasons. Available in blue or green, it is made of TPU and sponge, has a weight capacity of 330 lbs, a net weight of 6.6 lbs, and the carry bag measures 38" x 16.5" (L x W). Each unit comes in one box, which may vary by batch.