The Centari Sleeping Bag from Therm-a-Rest, is the ultimate solution for backcountry travelers who want to be prepared for any weather and temperatures as low as 0 F (-18 C). EraLoft synthetic insulation is light, compressible and provides a high degree of warmth in even the wettest conditions. The unique shape offers both room to turn and roll over comfortably, and thermal efficiency that keeps you warm all night long.