Big Agnes Women's Sidewinder Camp FireLine Eco Fill Sleeping Bag is the women's camp sleeping bag engineered for side sleepers, with FireLine Eco insulation and a shape that lets you curl naturally. If you camp in ~35°F conditions and hate restrictive bags, buy it online today at $62.59.
Specifications
- Brand: Big Agnes
- Series: Sidewinder Camp
- Product Type: Women's mummy sleeping bag
- Insulation: FireLine Eco fill
- Shell: Nylon
- Temperature Class: ~35°F camp rating
- Best For: Side sleepers, car camping, basecamp
Warmth: Is It Warm for 35 Degrees?
Yes – the Sidewinder Camp is designed around a 35°F comfort target. For colder nights, add a liner or wear insulated layers inside the bag.
FireLine Eco Wet Warmth
FireLine Eco synthetic insulation retains insulating value when damp, unlike down – a real advantage for humid camps and coastal trips.
Built for Side Sleepers
The Sidewinder shape gives extra room to draw knees up and shift positions, so side sleepers stay covered and warm instead of fighting a narrow cut.
Use Cases
Car camping, festivals, basecamp, guest bed, and shoulder-season trips where 35°F warmth matters.
Comparison and Alternatives
Versus standard mummy bags, the Sidewinder wins for side-sleeper comfort. Versus down bags, FireLine Eco keeps warming when wet at a lower price.
Price and Deal Value
$62.59 vs. $135.96 compare-at – save 54%. Stack coupon SAVE15 at checkout, and orders over $45 ship free.
