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If it's never summer, it's probably always cold.

If it's Never Summer, as the Marmot 0-Degree Down Sleeping Bag of the same name suggests, it stands to reason that it's always either spring, fall, or winter, and that any campers or backpackers are going to need a seriously warm sleeping bag. The Never Summer's certainly that, as it's packed full of 650-fill down that's been treated with Down Defender to help it stay lofty and warm, even in wet conditions. It also has features like an insulated five-baffle hood, a face muff, and a trapezoidal footbox designed to keep you warm and comfortable when the mercury drops all the way down to 13 degrees.

The Never Summer's perfect for active sleepers, too, with stretchy baffles that keep you from getting stuck and claustrophobic, and locking zippers that won't come undone if you're chasing squirrels or wrestling bears in your dreams. An draft tube keeps—surprise!—drafts at bay, and the insulated collar stops warm air from sneaking out the top of your bag. Slip your essential whatevers into the small stash pocket, cinch up the hood drawcord, and ride out the icy winter nights in serious comfort.

  • 13-degree EN comfort rating
  • 650-fill down with Down Defender water-resistant treatment
  • Mummy bag with ground-level side seams
  • 40D nylon ripstop fabric
  • Five-baffle Nautilus drawcord hood, insulated draft tube, and face muff
  • Trapezoidal footbox construction
  • Stretch tricot baffles
  • Stash pocket
  • Hang loops

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Marmot Never Summer Sleeping Bag: 0 Degree Down

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Here's what others have to say...

5 5

Warmth that should cost more

  • Familiarity: I've put it through the wringer

I have owned a Never Summer down bag for 10 years now. Though the may have seen some light improvements in that decade it is relatively unchanged. The reason for this is Marmot nailed this bag when they first designed it. The bag is fairly light for a 0 degree bag. I use this bag for early spring and late fall camping. I have used it in the dead of winter camping here in Utah and found it worked quite well. Only once have I been cold in this bag and that night was below zero. I would say this bag is quite comfortable from around 40 degrees to 15 degrees or so. The quality is spot on and I have not had one issue with this bag in the time I have owned it. I do store it in a a storage sack to keep it from being compressed while in storage. I would recommend this bag to any one who is looking for an awesome 0 degree bag but doesn't want to spend the money for an ultralight model.

5 5

Should be called "Never-In-Summer"

  • Gender: Male
  • Familiarity: I've put it through the wringer

I've always had a hard time sleeping warm in synthetic bags, especially during winter & spring. This bag has become my main one for quite a while now, but it can get really, really warm during nice summer nights...I usually don't even bother zipping up, and often just sleep with it draped over my midsection. Awesome value for the $$, even good for mild winter camping here in Wyoming! Not an "arctic bag" though...