"What Our Gearhead® Experts Are Saying:""I brought the Blaze -20 Sleeping Bag on a late-season trip into the Uintas, where nighttime temps dropped hard and fast. The insulated zipper baffle and contoured hood sealed in heat so well that I actually slept through the night without waking up cold, which is not something I can say about every bag I have tested at that temperature range.""The forecast said single digits, and you committed anyway. That is exactly the kind of trip the ALPS Mountaineering Blaze -20 Sleeping Bag was built for, delivering serious cold-weather protection without asking you to spend a serious amount of money to get it. From high-elevation base camps to deep-winter car camping trips where the thermometer keeps dropping after dark, this bag earns its place in the gear pile. TechLoft Silver synthetic insulation uses multi-denier siliconized fibers in a two-layer offset construction to trap warmth effectively and bounce back after compression. The contoured mummy hood wraps close around your head to stop heat from escaping at the top, while the insulated chest baffle and zipper baffle form a second line of defense against cold air sneaking in along the zipper line. A separating zipper makes getting in and out easy, even with cold, fumbling fingers at the end of a long day."