Spark SP1 Sleeping Bag Folds Down Into A Pint-Sized Bundle

A sleeping bag will either take a good chunk of space in your sleeping bag or add a big lump of bulk when strapped to any part of your gear. That's just how it goes. And we live with it. That doesn't have to be the case, however, with the incredibly minimalist Spark SP1.

Made by Sea to Summit, it's a minimal-packing sleeping bag that can fold into an unusually compact bundle, making for the perfect companion to your Salomon S-Lab Minimal Jacket. Seriously, it looks about the size of an ice cream pint. It comes with an equally small compression bag, too, so everything's neat and tidy when you take it out to your hikes and excursions.

To achieve the compact size, the Spark SP1 wasn't built as the thickest and warmest sleeping bag ever, so it's only restricted for use during spring, summer and autumn months. Don't worry, you won't freeze to death sliding under this while sleeping in the mountains -- it comes with 850+ loft 90/10 goose down, ultra-dry down and 15D lining, giving it one of the best warmth to weight ratio among minimalist sleeping bags in the market. It's cut as a close-fitting mummy bag, with a full hood, foot box, and a short zip, maximizing the fit while minimizing size on all fronts. It comes in two sizes, regular (fits people up to 6 feet) and long (for giants up to 6'7'').

The Sea to Summit Spark SP1 is available from Amazon, priced at $393.91.

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8 Responses

  1. Wolf

    Old old old news. Sleeping bags have been this small and light for years now. I have a Marmot Atom that is made with 850+ fill down. It gets as small and light. Have had it for 3 years now. Wow so out of date this.

    Reply
    • Chris

      Your Marmot Atom weighs 21.5 oz. The Spark SP1 has a similar temperature rating and weighs 12.3 oz. Nearly half as much. And packs down much smaller.

      Reply
    • Robert Pruitt

      It’s a “3 season” tent. You can Google something like “Temperature range for 2 season tent” and it should be easy to find out. But you won’t be using it in winter, even in the lower 48, So in Alaska? No chance.

      Reply
    • Robert Pruitt

      Oops. That should be “Temperature range for 2 season tent”. I put 2 season by mistake.

      Reply
  2. Charles

    Approximately how long does it take to get the sleeping bag inside the sack and then compress it?

    Thanks.

    Reply
    • Chris

      Takes me a couple of minutes with mine, but I haven’t had a chance to field test it yet (will be this weekend.)

      Reply

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