Thermarest NeoAir Camper Mattress polyester Thick & Supportive: NeoAir construction offers 3 inches (7.6 cm) of stable support  perfect for side sleepers and comfort seekers. Advanced Materials: Woven fabrics and stretch materials create a soft mattress that cradles your body. Durable: Tough, 75-d polyester bottom and rugged construction deliver the most reliable long-term performance. Compact: Low-bulk construction allows the Camper to compress down to a surprisingly small packed size. Stuff sack and repair kit included