The Bozeman 30 Sleeping Bag from Mountain Hardwear is a practical option for those... who sleeps in cars and vans and also in tents. The overall temperature range of 30F makes it suitable for most summer trips and even some off-season trips When is the weather good for hiking? rock climbing and canyoning. It has synthetic insulation in an offset quilt shape to prevent cold spots even if condensation wets the bag. Full-length zipper can turn the Bozeman into a blanket on warm evenings and when combined with separate bags it forms a double bag. Ventilation pipes are located above the zipper and hood and the hood has a face pad for reliable protection at night. Mountain Hardwear made a stuff sack lined with microfleece which can be turned inside out stuff the bag with clothes and use it as a comfortable pillow.