materials and allseason comfort The surface is sanded for a smooth feel and can be used in all seasons. The inner filling uses down cotton with a 10 cm thick futon mattress, providing comfort, softness, moisture absorption, and breathability. Warm, elastic, and able to conform to the body curve; the construction is quilted for durability. Ergonomic design for full body support Threedimensional support fully supports every part of your body. Helps improve sleep quality and can relieve most lower back pain caused by stiffness. Follows the body curve according to sleeping position to provide corrective support. Durable construction and detail Threedimensional edging technology with fine stitching for wear resistance. density quilting design with uniform thickness to resist deformation. Strap design features antislip widened straps at all four corners for secure fixation and minimal shifting. Portable and versatile for travel and home use Foldable and stowable when not in use, saving space. Easy to carry in the car; convenient for travel and camping. A reliable companion for family leisure and rest. Use scenarios At home: daily rest and back support during naps or relaxation. On the road: take along for comfortable sleep during car trips or hotel stays. Outdoors: ideal for camping and other outdoor activities as a portable sleep solution.