Big Agnes - Rapide SL Ultralight Insulated Sleeping Mat - (20 x 72 Insulated). Used a couple of times for garden camping. The Big Agnes Rapide SL Ultralight Insulated Sleeping Mat is a high-performance three-season pad featuring a 4.8 R-Value (ASTM F3340-18), making it suitable for cold-weather adventures. It utilizes a proprietary offset I-Beam construction that reduces weight while providing multi-directional support and stability. The mat is insulated with PrimaLoft® Silver and includes a heat-reflective film to maximize thermal efficiency. Constructed from durable, aviation-grade double ripstop nylon with TPU lamination, it features a high-volume dual-port valve for rapid inflation and micro-adjustments. Technical Specifications: R-Value: 4.8; Weight: 539g (19oz); Dimensions: 51 x 183cm (20" x 72"); Thickness: 9cm (3.5") with 11cm (4.25") larger outer chambers; Material: Double ripstop nylon; Insulation: PrimaLoft® Silver.