If you love to have space to sprawl in a sleeping bag, check out this selection of the best down-rectangular sleeping bags from the top brands in the outdoor industry.

When we think about down sleeping bags, we usually imagine a mummy-shaped structure, which is mostly the case. Down sleeping bags are generally built narrow, ultralight, and ultra-packable so you can carry them on the trail.

On the other hand, the usual perception of rectangular sleeping bags is that they are heavy synthetic constructions that don’t keep you that warm.

But this article will introduce you to some of the best rectangular down sleeping bags; let’s take a look:

Our List Of Best-Rated Down Rectangular Sleeping Bags

The sleeping bags in the list below are ordered by weight from heaviest to lightest, so you can easily find the weight you’re looking for:

Note that the brands in the list above are the best-known in this industry, so you know you’ll get good quality products.

1. Kelty Galactic 30 Sleeping Bag

  • Weight: 2.14 lbs
  • Temperature Rating: 30 F
  • Dimensions: 84″ x 34″
  • Pack Size: 15″ x 8.3″

The Kelty Galactic is a rectangular sleeping bag with a down 600 fill and uses a DryDown filling, which is treated to perform better. The plumes are treated with a spray-on polymer that resists water while at the same time maintaining loft. They claim it dries faster than untreated down if it gets wet.

Best Design


  • It’s very versatile
  • It’s extremely comfortable
  • It’s not too expensive


  • A bit heavy

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The shell in the picture above is a 50D down-proof polyester taffeta. The same material is in the liner. Note that this bag can be zipped to another of the same type, so you can have a double-wide sleeping bag to share with your partner.

The official temperature rating is 30 F (-1 C), so this is a 3-season bag, but it is without a hood. They build it in three sizes, so you have R & L and women-specific.

2. Big Agnes Camp Robber Bedroll Sleep System

  • Weight: 2.4 lbs
  • Temperature Rating: 45 F
  • Dimensions: 78″ x 25″
  • Pack Size: 13″ x 9″

This product is a 3-in-1 sleeping system. It includes a poly-cotton sheet that doubles as a padded sleeve and a detachable comforter that works as a double-wide quilt and zips to the sheet/sleeve. In this configuration, it looks like a bottomless double sleeping bag. But the comforter can also be folded and zipped into a single sleeping bag.

Top Pick


  • It has a very unique design
  • It’s Bluesign approved
  • It’s very comfortable


  • Not very wide when used as a solo sleeping bag

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When used as a solo sleeping bag, its dimensions are 78 x 25 inches (198 x 64 cm); the picture above shows how it looks. They call this the Wide Long version, but they have three sizes in total. Its weight is 2 lb 4 oz (1.02 kg), and its packed size is 13 x 9 inches (33 x 23 cm).

This is a delightful sleeping bag with a temperature rating of 45 F (7 C). The insulation is a 650-fill DownTek, a treated water-repellent down that uses a PFC-Free and bluesign-approved chemistry. This makes the sleeping bag suitable for 2-3 seasons.

3. Exped Versa Quilt

  • Weight: 1.7 lbs
  • Temperature Rating: 41 F
  • Dimensions: 82.6″ x 53.1″
  • Pack Size: 13.4 x 7.5

Although they call this a quilt, you can also use it as a sleeping bag, which makes it very versatile. It is very lightweight, only 27.5 oz (780 g), and the packed size is also excellent, 13.4 x 7.5 inches (34 x 19 cm).

Most Versatile


  • It’s a very versatile product
  • Oeko-Tex approved
  • It’s made with excellent materials


  • Not very wide
  • Expensive

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Note that it uses toggles and not zippers, and this also allows it to be combined with yet another piece, and you can create a double-wide sleeping bag. The fill is a 650 duck down, and the shell fabric is a very lightweight 30D nylon, Oeko-Tex 100 class 1.

When used as a blanket, the dimensions are 210 x 135 cm (6.8 x 4.4 ft). It fits users up to 180 cm (5.8 ft). For the bag width, just take the half mentioned for the blanket. The temperature rating is Comfort: 10 °C (50 F), Limit: 5 °C (41 F), and Extreme: -7 °C (19 F).

4. Naturehike 1.28 lbs Ultralight 800 Fill Power Goose Down Sleeping Bag

  • Weight: 1.28 lbs
  • Temperature Rating: 42.8 F
  • Dimensions: 78.74″ x 31.5″
  • Pack Size: 10″ x 4.5″

This is an ultra-compact and ultralight sleeping bag, the packed size is (L x D) 10 x 4.5 inches (25.4 x 11.2 cm), and its weight is 1.28 lb (0.58 kg). The dimensions of the two bags are (R) 74.8 x 28.35 inches (190 x 72 cm) and (XL) 78.74 x 31.5 inches (200 x 80 cm). Note this is for its regular size, but they also have an XL version that weighs 1.74 lb (0.79 kg).

Best Pack Size


  • Excellent packed size
  • It’s not very heavy at all
  • Made with high-quality materials
  • It’s a great price


  • It’s not great for people with wide shoulders

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Regardless of which size sleeping bag you choose, these bags are an excellent option for backpackers and hikers. But this also means they are suitable for practically any outdoor use. The official temperature rating is 32 ℉ to 42.8 ℉ (0 – 6 Celsius).

They make this sleeping bag in two different colors. The fabric is a very thin 15D/400T nylon, and they claim it is waterproof up to 3000 mm, which is incredible, assuming it is true. The zipper is a top-quality Japanese YKK. The insulation is an excellent quality 800 fill power pure white goose down.

Final Thoughts

So this was our list of best down rectangular sleeping bags. All of them are light enough to be carried on the trail, but there are significant differences in the weight by a factor of 2 lbs. This is why it is essential to check the numbers. Prices are also very different, so this is another thing to remember if you are on a budget.

With a sleeping bag, you will need a pad, so check this list of the best compact sleeping pads for backpacking. You might want to see also our list of the best lightweight synthetic sleeping bags.

Let me know if you have questions; there is a comment box below.

Fun Outdoors Team

The FunOutdoors team is comprised of seasoned writers and editors with a passion for outdoor living. 

Happy trails!