This is an air mattress sold by EXPED. With an R-value of 2.9, it can be used for three seasons at high altitudes and even in winter camping, making it suitable for all seasons. It is a size S (160cm), so it is suitable for petite men and women. I purchased it in July 2025 and used it twice for tent camping. I am selling it because I don't think I will have opportunities for tent camping or camping in cold weather. I am open to price negotiations. Below is the product description. ↓ -5℃: 3-season inflatable tent mat. Specifications This ultra-lightweight mat is suitable for active adventures such as backpacking, thru-hiking, bikepacking, and alpinism. It is an ultra-lightweight and compact 3-season sleeping mat made with recycled 20D ripstop face fabric and certified carbon neutral by "myclimate". <SynMat Technology> The 60g/m³ Texpedloft insulation enclosed in the upper and lower air chambers ensures maximum warmth throughout the mat. <7cm thick air cushion with Exped Cradle Comfort Design> The air chambers run from head to toe, providing complete support for your body during nighttime sleep. It is also highly durable. <Schnozzel Pumpbag (included)> A pump bag that allows you to inflate the mat instantly. It does not use exhaled air, so the inside will not get damp. Dimensions Size: 160 x 52 x 7 cm Packed Size: 23 x 10.5 cm Minimum Weight: 0.41kg Maximum Weight: 0.56kg Thank you.