Best TETON Sports Sleeping Bags for Hiking in 2026: 3 Picks

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Finding the best TETON Sports sleeping bags for hiking requires checking published specs, not just brand names. This guide compares 3 options based strictly on their listing data. The top pick is the TETON Sports Tracker 5 Degree Double Mummy, which leads because its 63-inch width offers double-width comfort for two people. We evaluated weight, temperature ratings, and dimensions to ensure accuracy. Use these findings to decide which bag fits your group size and cold-weather needs.

Match temperature ratings to hiking conditions

You should select a bag based on the lowest expected temperature. The Tracker 5F and Altos-S 0F provide warmth for cold nights, while the Mammoth 20F suits milder weather. Also consider width. Double bags like the Tracker offer 63 inches of space for two people, whereas single bags like the Altos-S provide 32 inches for solo hikers.

The best fit for you

• You need a double bag for two hikers – TETON Sports Tracker 5 Degree Double Mummy – Its 63-inch width and 8.2-pound weight support two people in cold weather.
• You prioritize wide comfort over pack weight – TETON Sports Mammoth +20F Queen Sleeping Bag – The 62-inch width and 15-pound weight offer spacious cotton flannel comfort.
• You need reliable warmth in freezing conditions – TETON Sports Altos-S 0°F Synthetic Mummy Bag – The 0°F rating and 3.5-pound weight provide synthetic insulation for hiking.

Specifications side by side

Spec	TETON Sports Tracker 5 Degree Double Mummy	TETON Sports Mammoth +20F Queen Sleeping Bag	TETON Sports Altos-S 0°F Synthetic Mummy Bag
Temperature Rating	5 Degree	20°F	0 Degree
Insulation Type	microfiber	fiber fill	–
Shape	mummy	–	mummy
Capacity	Double	Double	–
Weight	8.2 pounds	15 pounds	3.5 pounds
Lining Material	–	cotton flannel	–
Intended Use	Hiking, Backpacking	Hiking, Backpacking	Hiking, Backpacking
Material	–	Canvas	–
Insulation Material	–	–	Synthetic
Target Audience	–	–	Adults
Recommended Use	Camping	Camping	Camping
Weight Class	Lightweight	–	Lightweight
Dimensions	87 × 63 × 3 inches	94 × 62 × 3 inches	84 × 32 × 3 inches
Size	Double	Mammoth 20F	84 x 32 x 17
Color	Double Red	Grey (Cotton Flannel Liner)	Orange
Model	1109	1064	1169

How to choose the right sleeping bag

Check temperature ratings

Match the bag's rating to your expected conditions. The Tracker 5F handles cold nights, while the Altos-S 0F suits freezing temperatures. The Mammoth 20F works for milder weather. Select a rating that matches your lowest expected temperature. This ensures you stay warm without overheating. Do not guess. Use the published numbers to guide your choice for the specific season you are hiking in.

Assess bag width

Width determines comfort for solo or dual use. The Tracker offers 63 inches for two people or a spacious solo sleep. The Mammoth provides 62 inches of wide comfort. The Altos-S is narrower at 32 inches for one person. Choose a width that fits your body size and sleeping partner. Wider bags offer more room but may weigh more. Narrower bags save space.

Evaluate total weight

Weight affects your pack load significantly. The Tracker weighs 8.2 pounds, suitable for car camping or short hikes. The Mammoth is heavier at 15 pounds, best for base camps. The Altos-S is lightest at 3.5 pounds, ideal for backpacking. Consider how far you will carry the bag. Heavier bags provide more space. Lighter bags reduce fatigue on long trails. Match weight to your trip length.

Select bag shape

Shape impacts warmth and mobility. Mummy shapes like the Tracker and Altos-S fit closely to retain heat. They are efficient for cold weather. The Mammoth is a double bag, prioritizing space over aerodynamic warmth. Choose a mummy shape for active hiking in cold conditions. Select a wider shape for relaxed camping where movement is less restricted. Shape dictates how well the bag traps body heat.

Review material type

Material influences durability and feel. The Mammoth uses a cotton flannel liner for softness and comfort. This suits car campers who value comfort over weight. Other models use synthetic insulation for reliable warmth in damp conditions. Synthetic materials retain heat even when wet. Choose based on whether you prioritize soft comfort or technical performance. Material choice affects how the bag feels against your skin.

Frequently asked questions

Which TETON Sports sleeping bag is best for two hikers in cold weather?

The Tracker 5 Degree Double Mummy is the top choice for two people. It features a 63-inch width and a 5°F temperature rating. Weighing 8.2 pounds, it balances space with manageable weight for backpacking. The mummy shape helps retain heat while offering enough room for two sleepers to share the bag comfortably.

What is the warmest TETON Sports bag for hiking?

The Altos-S 0°F Synthetic Mummy Bag offers the lowest temperature rating at 0°F. It uses synthetic insulation to maintain warmth in freezing conditions. At 3.5 pounds, it is significantly lighter than double bags. The 32-inch width provides a standard fit for solo hikers who need reliable cold-weather protection.

Is there a wide sleeping bag option for car camping?

The Mammoth +20F Queen Sleeping Bag provides maximum width for comfort. It measures 62 inches wide and 94 inches long. This model weighs 15 pounds, making it heavy for hiking but ideal for car camping. The cotton flannel liner adds softness for base camp use where weight is less critical.

How heavy are TETON Sports sleeping bags for backpacking?

Weight varies by model. The Altos-S weighs 3.5 pounds, making it the lightest option for solo backpackers. The Tracker Double weighs 8.2 pounds, suitable for couples. The Mammoth is the heaviest at 15 pounds due to its canvas material and large size. Choose based on your group size and trip length.

What shape do these TETON Sports bags have?

The Tracker and Altos-S feature a mummy shape. This design tapers at the feet to reduce dead air space and improve heat retention. The Mammoth has a rectangular cut to maximize interior volume. Mummy bags are generally more efficient for hiking, while rectangular shapes offer more room for movement.

Can I use these bags in freezing temperatures?

Yes, but you must match the rating to conditions. The Altos-S is rated for 0°F, handling freezing nights. The Tracker is rated for 5°F, also suitable for cold weather. The Mammoth is rated for 20°F, which is not ideal for freezing conditions. Always check the specific temperature rating before your trip.

See also

• best TETON Sports sleeping bags for backpacking
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