When you shop for a sleeping bag make sure you consider the climate and weather conditions you will encounter when sleeping outdoors. Keep in mind that the temperature ratings are guidelines, as no industry standard exists. If you tend to be cold when sleeping take that into consideration when choosing a bag. Rectangular bags are the most versatile, while tapered and mummy bags are among the warmest. Als Army Navy carries sleeping bags of various kinds, pillows, blankets and and other sleeping accessories.