The ThermARest Saros Sleep System partners the Saros Three Season Synthetic Sleeping Bag with the NeoAir XLite Mattress to create a backpacking sleep system offering excellent freedom of movement and temperature regulation in temperatures as low as 33°F (1°C). Made with eraLoft™ synthetic insulation, the Saros Sleeping Bag offers quick-dry warmth and comfort that performs in all weather conditions. New fabrics provide a softer feel, while our SynergyLink™ Connectors and mattress integration ensure superior comfort with efficient warmth and the freedom to move as you like for the best night’s rest possible. To make inflating your mattress easy after a long day of adventure, we include the lightweight, compact NeoAir Mini Pump. The Air Head Pillow completes this exceptionally comfortable and packable sleep system. All at a special Sleep System price!