Why put up with the confines of a mummy bag when you can sleep foot loose and fancy free in the Sierra Designs Backcountry Bed Synthetic Sleeping Bag' Ideal for summer camping and backpacking trips, Sierra Designs' Backcountry Bed sleeping bags are for those wiggle worm sleepers who prefer to move about while they sleep. Their zipperless design and and large catenary shaped opening allow you to easily slip into the bag and then wiggle about once you're in there. An integrated comforter acts more like a blanket than a sleeping bag by enabling you to comfortably sleep on your back, sides, or stomach. For even more versatility, the bag is fitted with a self sealing foot vent that can be pushed open hands free when your feet need to breathe and is draft free when closed. A sleeping pad sleeve securely attaches your sleeping pad to the bag, and the insulated arm and hand pockets give your paws a place to warm if things get chilly.