Marmot Mad River 40 Down Sleeping Bag - Long - Zip Left - red sun/blackberry

Never change a winning team

The Mad River is a packable down mummy sleeping bag for anyone who values proven performance while trekking and simply wants to sleep well after a long day. The 650-fill-power duck down ensures that the sleeping bag compresses down small yet still puffs up to its full volume—so you can achieve optimal recovery after strenuous hikes.

The chemical-free ExpeDry™ technology ensures that the down dries quickly and retains its loft even when sweat, moisture, or condensation come into play—all without harmful chemicals. The full zip and an additional side zipper offer precise temperature regulation and wrap you up like a blanket—ideal for changing conditions, different sleeping positions, or relaxed card games in the tent.

The spacious footbox gives your feet freedom of movement and lets them breathe, while the insulated draft collar prevents warm air from escaping as you drift off to sleep. You can safely stow valuables like a headlamp or contact lenses in the inner pocket. With the included storage bag and compression sack, the sleeping bag is ready to pack into your backpack from day one. 

Features of the Marmot Mad River 40 Down Sleeping Bag

• Certified down with 650+ fill power and ExpeDRY treatment for quick drying and maintenance of loft
• Recycled outer and lining fabrics Full zip on the left side with a jam-free slider provides ventilation, comfort control, and easy access in and out of the sleeping bag.
• Anatomically shaped foot area with a wrap-around construction for added warmth and comfort
• Internal storage pocket
• The drawcord collar seals in warmth and prevents heat loss when moving during sleep
• ISO-certified for reliable temperature ratings
• Includes a compression sack and storage bag