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Cold Weather Down Sleeping Bag for Winter Camping, Backpacking & Outdoor Adventures – Lightweight Insulated Mummy Bag with Hood | Thomler
Sleep Warm on Your Coldest Adventures
When temperatures plummet, you need gear that keeps you comfortable through the night. This down-insulated sleeping bag delivers reliable warmth without the bulk, making it your go-to choice for winter camping trips, high-altitude treks, and frosty backcountry excursions. The premium fill provides exceptional heat retention while staying surprisingly light in your pack. A water-resistant ripstop shell shields you from moisture and gusts, while the adjustable hood and insulated foot compartment seal in heat where you need it most. Whether you're tackling overnight hikes or extended wilderness journeys, you'll rest easy knowing your sleep system won't let you down when the mercury drops.

Why You Need This
- Premium Down Insulation: Natural fill traps body heat efficiently while keeping pack weight minimal for extended trips.
- Compact and Travel-Ready: Compresses into a small stuff sack, leaving room in your pack for other essentials.
- Weather-Resistant Construction: Ripstop nylon exterior repels moisture and resists tears on rugged terrain.
- Adjustable Comfort Features: Cinchable hood and thermal foot box let you customize warmth exactly where you want it.
- Pair-Compatible Design: Zip two bags together to create a spacious double system for couples or extra room.
- Multiple Insulation Levels: Choose from five fill weights to match your typical camping conditions and personal warmth needs.
Built for Real Outdoor Use
You spend your days exploring trails, summits, and remote campsites—your sleeping bag should handle everything you throw at it. This design balances warmth, packability, and durability in one reliable package. The ripstop fabric stands up to rocky ground and brush without adding unnecessary weight, while the generous dimensions (roughly 82.5 × 31.5 × 19.5 inches) give you room to shift positions comfortably. Available in five fill weights and five colors, you can dial in the perfect match for your typical climate and personal style. Every order ships free within the US, and we back it with a straightforward 30-day return window so you can test it on your next trip with confidence.
Free shipping across the United States — always, with no minimum order.
Every order is carefully packed and sent with Track & Trace, so you can follow your package every step of the way.
Order today? We ship the next business day.
Not completely happy? You have 30 days to return your purchase.
On top of that, we offer a 3-year warranty against manufacturing defects — your investment is in good hands.
Made for everyday
Practical pieces you’ll actually use.
Quality first
Chosen for quality you can feel.
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Yours, the moment we pack it
- Hand-packed with care
- Checked before it ships
- Arrives exactly as pictured
Straight From Your Camera Roll
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A Note From Our Founder
When I started Thomler, I wanted one thing — to make it easy to find pieces that actually make a home feel like yours, without the markup. Every item we carry is one I'd happily put in my own home. And if it's ever not right, you've got 30 days to send it back, no stress. I'm only ever an email away.