Extreme temperatures. Extreme nights. Extremely good sleep with the Protect Fiber Bag -18̴åÁC. Optimized fit for more restorative sleep. A central zipper provides temperature regulation for climate-controlled sleep. A special material to prevent noise for undisturbed sleep. Extremely good sleep, as if in your own bed, with the Protect Fiber Bag -18°C, made from a waterproof material for extreme temperatures.