The North Face One Bag Sleeping Bag

Sleep well wherever you go with this The North Face sleeping bag. It has 3 distinct temp ratings so you'll be comfy in a variety of climates. Synthetic insulation and down combine for superb warmth.

Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.

• Top layer features Heatseeker™ Advanced synthetic insulation rated at 40°F (4°C) for versatile use in warmer weather
• Mid layer features 700-fill-power recycled down rated at 20°F (-7°C) for high-level performance in adverse conditions
• The 2 layers can be paired to get a 5°F (-15°C) bag for maximum versatility
• Down layer can be used as a standalone quilt for campsite lounging
• Large, fitted hood accommodates a pillow and an arms-over-the-head sleeper
• Anti-compression layer on back is composed of synthetic insulation
• Durable YKK® zipper
• Vaulted footbox
• Comes with a compression sack that has fleece on the inside so you can use it as a camp pillow