REI Co-op Magma 15
$400+Prices change often; check the current price on Amazon.
REI's premium down mummy bag, positioned against boutique ultralight bags at a lower price.
15°F; 850-fill-power RDS down; mummy cut
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Outdoor & Camping · 2026⛺ Sleeping Bags
7 products. Factual overviews with honest trade-offs, all in one place.
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NEMO Disco 15 Endless Promise
$200–$400Prices change often; check the current price on Amazon.
A long-running down bag built around a roomier spoon shape aimed at side sleepers, now in NEMO's recyclable Endless Promise line.
15°F; 650-fill hydrophobic RDS down; spoon-shaped cut
Pros
- NEMO lifetime warranty
Cons
Sea to Summit Flame III
$400+Prices change often; check the current price on Amazon.
An ultralight down bag aimed at gram-counting backpackers who want a sub-freezing rating in a minimal package.
18°F (-8°C); 850+ fill-power RDS down; ultralight mummy
Pros
Cons
Marmot Trestles Elite Eco 20
$100–$200Prices change often; check the current price on Amazon.
A long-running synthetic bag positioned as an affordable, easy-care option for damp conditions where down is less ideal.
20°F; HL-Elix Eco synthetic insulation
Pros
Cons
Mountain Hardwear Bishop Pass 15
$200–$400Prices change often; check the current price on Amazon.
A mid-priced down mummy bag aimed at backpackers wanting a solid warmth-to-weight ratio without a premium price.
15°F; 650-fill RDS down
Pros
Cons
Teton Sports Celsius XXL 0°F
$50–$100Prices change often; check the current price on Amazon.
A budget cold-weather bag with an extra-wide cut aimed at larger campers and car camping.
0°F; synthetic fill; extra-wide cut
Pros
Cons
Coleman Brazos 20
$50–$100Prices change often; check the current price on Amazon.
An inexpensive synthetic bag positioned for occasional campers and mild nights.
20°F; synthetic insulation; machine washable