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  • The North Face - Inferno Sleeping Bag: -40 Degree Down - Asphalt Grey/Centennial Red

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  • The North Face - Inferno Sleeping Bag: -40 Degree Down - Asphalt Grey/Centennial Red

The North Face Inferno Sleeping Bag: -40 Degree Down

$728.95 - $748.95

Free 2-Day shipping on orders over $50*

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    • Asphalt Grey/Centennial Red

    2 Reviews


    The warmest for the coldest.

    This Inferno Sleeping Bag is The North Face's warmest expedition bag and is designed for the world's harshest environments. The North Face treated this bag's light and lofty 800-fill down insulation with ProDown water-resistance to retain its warmth in wet weather. Neovent Air fabric adds extra water-resistance to the hood, back, and footbox for moisture-riddled tents.

    A generous mummy cut helps you layer up before you go to bed, and the half-length center zipper offers easy entry. The North Face also added a cinch-cord at the hood and draft tubes at the collar and overlap to keep frigid winds at bay. This bag also features an internal pocket to insulate electronics and valuables.

    • -40F temperature rating
    • 800-fill ProDown insulation
    • Neovent Air hood, back, and footbox
    • Generous mummy cut
    • Half-length center zipper
    • Hood cinch-cord
    • Full draft collar and overlap
    • Internal pocket
    • Compression and storage sacks included
    • Item #TNF01B0

    Tech Specs

    [hood, footbox, back] Neovent Air
    800-fill ProDown
    generous mummy
    half-length center
    Max User Height
    [regular] 6 ft, [long] 6 ft 7 in
    Draft Tube
    yes, collar, overlap
    [internal] 1 storage
    -40 F
    Storage Sack
    Stuff Sack
    Stuff Size
    12 x 22 in
    Recommended Use
    alpine & expedition
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Warm but restrictive

    • Familiarity: I've put it through the wringer

    No doubt this bag is a nuclear reactor. I used it for a recent ascent of Aconcagua and was never in the vicinity of cold. Quite the opposite. I was hot most nights and couldn't effectively vent the bag without exposing the entire upper half of my body. Guide said we needed a -20/-30 F bag for the expedition so I bought this. If I were to choose again, I would choose a -20F with a traditional zipper all the way down the side to allow ventilation. I still like the bag though.

    - Very warm
    - Very lightweight and compressible for the rating
    - Appears durable

    - Center zipper means your leg movement is a little restricted. If you're claustrophobic at all, this is not your bag.
    - No way to vent your legs. I think a good idea would be to add a zippered vent somewhere on the bottom half of the bag to cool down when temps are higher. When mountaineering coldest temps only experienced at highest camps and this bag is totally overkill at lower/base camps.
    - The zipper itself is hard to zip all the way up when you're in the bag. It's not a big robust, easy-close plasticized metal zipper, perhaps because they vent too much. I had a hard time zipping all the way up to my chin. Required major contortions on my part.

    Kind of insane that the weight isn't listed here...

    Hola haces envios a argentina?

    Hola Guillermo, En Recursos en la parte inferior se puede hacer clic sobre " la política internacional de envío" . Una vez allí, en la columna de la izquierda , hay una que dice: " no podemos enviar a ciertos países " bajo órdenes internacionales . No vi a Argentina en la lista. Usted puede intentar llamar a atención al cliente y ver si tienen a alguien que hable español para ayudarle. Buena suerte.

    I'm 6ft, do the regular size will be to just for me ?

    Will this be warm enough for climbing Mt Denali?

    Best Answer


    This -40 bag will definitely be warm enough. If you're a cold sleeper then you'll want to wear additional layers to bed and make sure you eat and drink a bunch / exercise before bed.

    Shoot me an email anytime you have questions!

    Jared D.

    Expert Gearhead


    Why do they not list the fill weight... Arghh. Anyone know what it is?