Features:* 190T material breathable and moisture-proof, enable keep for long time, comfortable and practical.* Special internal air structure and 5cm thickness, lightweight and portable.* One-piece design with pillow, easy and convenient to carry outside.* High Rebound Sponge and the special structure, make you easy to sleep, improve your sleep quality greatly.* Double mat can be spliced into a larger bed, deliver you larger space to sleep, so convenient.