TETON Sports LEEF Short 30°F vs Kelty Mistral 40

Editorial Team
Last modified at July 31, 2026
When it comes to budget sleeping bags, the TETON Sports LEEF Short 30°F and the Kelty Mistral 40 are two popular choices. Both offer a range of features designed to keep you comfortable and warm during your outdoor adventures. However, they have distinct differences that may make one a better fit for your needs than the other.

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TETON Sports LEEF Short 30°FKelty Mistral 40
LEEF Short 30°F
Mistral 40
Fill Type

Micro Fibre synthetic

CloudLoft synthetic

Weight

40 oz

44 oz

Size

75 × 30 × 20 in

Regular: 76 in long

Shell Material

Polyester ripstop

190T polyester taffeta

Compression Sack

Included

Included

Warranty

Limited lifetime

Limited lifetime

Lining Material

Brushed polyester

190T polyester taffeta

Baffle Construction

Not specified

Offset quilted

Color

Fire & Slate

Green

Draft Tubes

Full-length zipper draft tube

Draft-locked zipper

Fill Power

Not applicable - synthetic fill

Not applicable - synthetic fill

Foot Box

20 in mummy footbox

Natural-fit spacious footbox

Comfort

LEEF Short 30°F

4.3/ 5.0

Mistral 40

4.6/ 5.0

Comfort is crucial for a good night's sleep, especially when you're out in the wilderness. A comfortable sleeping bag can make a significant difference in how well-rested you feel the next day. The Kelty Mistral 40 excels in this category with its comfort hood, spacious natural fit foot box, and full hooded draft tube, making it feel more luxurious and accommodating. The TETON Sports LEEF Short 30°F, while comfortable with its plush feel and enough room to move around, doesn't quite match the Mistral 40's level of comfort. If a cozy, comfortable sleep is your top priority, the Mistral 40 is the better choice.

Durability

LEEF Short 30°F

4.3/ 5.0

Mistral 40

3.6/ 5.0

Durability ensures your sleeping bag can withstand the rigors of outdoor use and last for many trips to come. The TETON Sports LEEF Short 30°F shines in this area with its durable construction, including zippers that remain functioning and smooth, and seams that hold up well even after washing. The Kelty Mistral 40, while having a durable shell and liner, doesn't have as many positive mentions regarding its long-term durability. For those who need a sleeping bag that can handle frequent use and rough conditions, the LEEF Short 30°F is the more reliable option.

Warmth

LEEF Short 30°F

4.6/ 5.0

Mistral 40

4.4/ 5.0

Warmth is a critical factor, particularly for those camping in colder temperatures. The TETON Sports LEEF Short 30°F is rated for lower temperatures and has received praise for keeping users warm in near-freezing conditions. It features added insulation in the foot box and keeps the warm air in effectively. The Kelty Mistral 40, while also warm and cozy with its CloudLoft synthetic insulation, is rated down to 20°F and may not be as warm as the LEEF Short 30°F in extremely cold conditions. If you're planning on camping in colder weather, the LEEF Short 30°F is the better choice.

Packability

LEEF Short 30°F

3.7/ 5.0

Mistral 40

4.1/ 5.0

Packability is important for those who need to save space in their backpacks. The Kelty Mistral 40 is more packable, weighing less and coming with its own compression sack, making it easier to carry and store. The TETON Sports LEEF Short 30°F, while it does come with a compression sack, is bulkier and not as packable. If saving space and weight in your backpack is a priority, the Mistral 40 is the better option.

Ease Of Use

LEEF Short 30°F

3.6/ 5.0

Mistral 40

4.1/ 5.0

Ease of use can make setting up and packing away your sleeping bag a breeze. The Kelty Mistral 40 has a non-snag zipper and dual slide snag-free locking zippers, making it easier to get in and out of. The TETON Sports LEEF Short 30°F, while generally easy to use, has a zipper that can be a bit finicky. For those who value convenience and ease of use, the Mistral 40 is the better choice.

Versatility

LEEF Short 30°F

3.0/ 5.0

Mistral 40

4.1/ 5.0

Versatility allows a sleeping bag to be used in a variety of conditions and seasons. The Kelty Mistral 40 offers more versatility with its dual slide snag-free locking zippers that allow for venting and temperature regulation. The TETON Sports LEEF Short 30°F has some versatility with its flexibility and ability to open the zipper to regulate body temperature, but it doesn't match the Mistral 40's level of versatility. If you need a sleeping bag that can adapt to different conditions, the Mistral 40 is the better option.

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Conclusion & Final Verdict:

After comparing the TETON Sports LEEF Short 30°F and the Kelty Mistral 40, it's clear that both sleeping bags have their strengths. The LEEF Short 30°F excels in warmth and durability, making it a great choice for colder conditions and frequent use. On the other hand, the Mistral 40 offers superior comfort, packability, and versatility, making it ideal for those who prioritize a comfortable, easy-to-carry sleeping bag.

Final Verdict:

  • Choose the TETON Sports LEEF Short 30°F if you need a warm, durable sleeping bag for colder temperatures.
  • Choose the Kelty Mistral 40 if you prefer a more comfortable, packable, and versatile sleeping bag.
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