Do not underestimate the need for a bomber sleeping bag when spending time outdoors this winter. Long, frigid days and cold, stormy nights take their toll without a solid refuge from the elements. The Sierra Designs BTU-20 is a four-season, 800-fill goose down refuge with a waterproof shell that acts as a personal space heater when Old Man Winter decides to make his presence known. During a weeklong storm, my mind wandered from which book I should devour to “How did I get into this situation?” but never once questioned the bag I was in. Available at Northern Lights, Barrel, and Round House. $510; sierradesigns.com.