TETON Sports 4-in-1 RV Sleeping Bag Four-in-one RV sleeping bag separates into two single bags or serves as double bag +20-degree temperature rating with good ground insulation, such as mattress +40-degree temperature rating with thick side down; 3 roll-up straps for storage When separated, each bag measures 80 inches long and 35 inches wide Ideal size for the RV; measures 80 by 70 inches when combined