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Kelty
Kelty Mistral 40 Sleeping Bag

Kelty Mistral 40 Sleeping Bag

4.3· 35 ratings

Best price now

$38.97at Steep & CheapObserved at 2:11 PM

22% under what the other stores charge

Compared across 8 stores. Prices are checked against each store and labelled with when.

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Our take on the Kelty Mistral 40 Sleeping Bag

The Kelty Mistral 40 is a three-season mummy bag rated to 40°F, built for mild-weather camping and backpacking. It uses a 190T polyester taffeta shell with a PFAS-free DWR finish, an anti-snag zipper and a stuff sack, and comes in Regular (76 in) and Long sizes, with the Long weighing about 1.4 kg. At $38.97 at Steep & Cheap as of November 3, 2026, it sits at the low end of its recent range, well under the $60–$80 it typically sells for. That makes it one of the cheapest credible 40°F mummy bags from a known brand.

Best forSummer and mild-weather car campersBudget-first first-time backpackersScouts and casual overnight tripsWarm sleepers who want a light pack
Pros
  • Very low price for a branded mummy bag
  • PFAS-free DWR shell
  • Anti-snag zipper reduces frustration
  • Stuff sack included
  • Available in Regular and Long lengths
Cons
  • 40°F rating limits it to warm nights
  • Synthetic fill is bulky and heavier than down
  • 1.4 kg Long is heavy for serious backpacking
  • Not a true cold-weather bag

Kelty Mistral 40 Sleeping Bag prices at every store

  • Steep & CheapNew

    In stock

    $38.97Observed at 2:11 PM
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  • eBayNew

    In stock

    $43.99Observed at 2:11 PM
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  • Backcountry.comNew

    In stock

    $48.71Observed at 2:11 PM
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  • MotoSport.comNew

    In stock

    $48.71Observed at 2:11 PM
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  • Ski ShackNew

    In stock

    $49.96Observed at 2:11 PM
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  • DICK'S Sporting GoodsNew

    In stock

    $49.99Observed at 2:11 PM
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  • Macy'sNew

    In stock

    $55.20Observed at 2:11 PM
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  • Academy Sports + OutdoorsNew

    In stock

    $64.99Observed at 2:11 PM
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Also available at

  • eBayCheck price at eBay
  • etrailer.comCheck price at etrailer.com
  • Public LandsCheck price at Public Lands
  • Sportsman's WarehouseCheck price at Sportsman's Warehouse
  • WildCountry OnlineCheck price at WildCountry Online

Kelty Mistral 40 Sleeping Bag price history

Lowest price we've seen: $38.97 on Nov 3 at Steep & Cheap. Tracked across 12 stores since Nov 3.

What reviewers say

Owners rate it 4.3 out of 5 across 35 ratings, generally as a solid value bag for summer camping. Complaints center on warmth limits and packed size rather than durability.

Pros
  • Good value for the price
  • Comfortable natural fit for a mummy bag
  • Zipper works smoothly
  • Holds up for casual trips
Cons
  • Too cold below about 50°F for many sleepers
  • Bulky when packed
  • Heavier than expected

Specifications

Color
Grape Leaf
Temperature Rating
40°F
Closure Type
Zipper
Size
Regular, Long
Count
1
Item Weight
1.4 kg (Long)
Material Type
190T Polyester Taffeta (shell)
Material Certifications
PFAS-Free DWR
Age Group
Adult
Occasion
Camping
Typical Users
Outdoor adventurers
Fit Style
Natural-fit
Shape
Mummy
Design Highlights
Stuff sack
Length
76 in (Regular)
Width
31 in

Questions and answers

Is the Kelty Mistral 40 worth it?
At $38.97 at Steep & Cheap as of November 3, 2026, yes, if you camp in warm weather. It is a low-risk entry bag from a known brand. Skip it if you need a bag for cold nights.
What temperatures is it good for?
It is rated to 40°F, which suits summer and mild spring or fall nights. Many sleepers find it comfortable only around 50°F and above, so pair it with a liner for cooler trips.
Regular or Long size?
The Regular fits most people up to about 6 feet and measures 76 inches long. Choose the Long if you are taller or want extra room; it weighs about 1.4 kg.
How does it compare with a down bag?
It costs far less, but synthetic fill packs larger and weighs more than down. For backpacking where pack size matters, a down bag is the better long-term buy.
What is in the box?
The sleeping bag and a stuff sack. No pillow or liner is included.
When is it cheapest?
Clearance and end-of-season sales, like the current $38.97 at Steep & Cheap, are the lowest points. Summer gear discounts tend to appear in late summer and fall.
Where is the Kelty Mistral 40 Sleeping Bag cheapest?
At Steep & Cheap, for $38.97, 22% under what the other stores charge, as of our latest check.
What do buyers say about the Kelty Mistral 40 Sleeping Bag?
Rated 4.3 out of 5 from 35 ratings.
Where can I buy the Kelty Mistral 40 Sleeping Bag?
12 stores we checked sell it, including eBay, Steep & Cheap, Backcountry.com, MotoSport.com, Ski Shack.