The boxy shape is like your bed at home: spacious and comfy, fits most campers up to 6.5 FEET. Size: 90.5 x 32.3inches, 20% larger than most outdoor sleeping bags on the market, plenty of space to stretch or roll over. The separated bottom zipper lets you ventilate the foot section for better temperature control. On warm nights, unzip it and use like a blanket. The warm sleeping bag also has a drawstring hood that keeps the warm air in and the cold air out and away from your head and neck.