Marmot Mad River Down 0 Degree Sleeping Bag, Long

Reliable Warmth for Cold Backpacking Nights
Built for the backpacking traditionalist, this 0 degree sleeping bag focuses on dependable performance and real rest after long miles. The classic down mummy sleeping bag shape maximizes thermal efficiency, making it a trusted cold weather sleeping bag for nights when recovery matters most.

Packable Down with Proven Loft
High-quality 650-fill-power goose down allows this lightweight down sleeping bag to pack small while still lofting up tall for consistent warmth. This balance of compressibility and insulation makes it an ideal backpacking sleeping bag when space and warmth both matter on multi-day trips.

Chemical-Free Moisture Management
Integrated ExpeDry chemical free down technology permanently helps insulation dry faster and retain loft when exposed to sweat, humidity, or condensation. This innovation delivers long-term performance without PFAS, keeping this winter sleeping bag warm and reliable in demanding conditions.

Adjustable Comfort and Smart Insulation
A full-length anti-snag zipper combined with a secondary side zipper provides precise temperature control and blanket-style coverage for changing conditions and sleeping positions. A roomy footbox gives feet space to relax, while the insulated draft tube helps prevent warm air from escaping during the night.

Trail-Ready Storage and Packability
An internal stash pocket keeps small essentials like a headlamp or contact lenses secure and accessible. A compression sack and storage sack ensure this packable sleeping bag is easy to store and packs down efficiently from the first trip forward.