TETON Sports Mammoth 0°F Double Sleeping Bag, Ivy, 2-Person 94 x 62 in, SuperLoft Elite Fill

The TETON Mammoth 0° double sleeping bag is a roomy, insulated two-person bag designed to keep couples or families warm and comfortable in cold-weather camping down to around 0°F. The Mammoth blends a soft brushed poly-flannel liner, durable taffeta shell, and SuperLoft Elite hollow-fiber fill into a single, easy-to-use two-person sleep system. At 94" x 62" it’s larger than a standard queen and uses full-width baffles, draft tubes, and a mummy-style hood to trap heat while resisting cold drafts. The bag ships with an oxford stuff sack for straightforward stuffing and storage, and TETON Sports backs it with a lifetime warranty.

How does the Mammoth keep two people warm without needing two separate bags?

The double construction creates one continuous insulated chamber so heat circulates between occupants instead of escaping through two separate shells. Strategic features like full-length zippers, shoulder draft tubes, and a fitted hood reduce air exchange and retain warmth overnight.

• Full-width baffles prevent cold spots and maintain consistent loft
• Shoulder draft tubes and hood seal out cold air
• SuperLoft Elite hollow fiber fill maintains insulation even when compressed
• Two-way metal zippers with anti-snag properties for secure closure

What size and weight should I expect for car or tent camping?

The unpacked sleep area measures 94" x 62", giving plenty of room for adults and kids to sleep comfortably or cuddle up. Packed, the bag compresses to roughly 28" x 16" x 16" and weighs about 16.5 pounds, making it best suited to car, base-camp, or short-portage trips rather than ultralight backpacking.

• Sleeping dimensions: 94" x 62" (spacious for two)
• Packed size: 28" x 16" x 16" for trunk or gear lofting
• Pack weight: ~16.5 lb — ideal for car camping and basecamp use
• Includes oxford stuff sack with drawstring for easy storage

How comfortable and durable is the fabric and fill?

The interior uses 100% brushed poly-flannel for a soft, cozy feel against skin, while the taffeta shell stands up to campsite wear. The SuperLoft Elite hollow-fiber fill offers resilient loft that insulates well and recovers after packing, giving a blend of comfort and long-term durability.

• Soft brushed poly-flannel liner for next-to-skin comfort
• Taffeta outer shell resists abrasion and packs neatly
• Resilient hollow-fiber fill preserves loft and warmth
• Stitching and baffle design improve longevity and thermal performance

How easy is the bag to use, zip, and store after a trip?

Two-way metal zippers with anti-snag pulls make entry and exit simple, while the three-side zipper layout eliminates the hassle of joining separate bags. When packing up, the supplied oxford stuff sack is designed for a bottom-up stuffing method so you don’t need meticulous rolling—just stuff, cinch, and go.

• Two-way zippers allow ventilation or complete closure
• Three-side design removes zipper-joining steps for couples
• Oxford stuff sack for fast, simplified storage
• Instructional resources available from TETON Sports for packing tips

Who this is for: The TETON Mammoth 0° double sleeping bag is made for car campers, family campers, hunting buddies, and basecamp users who want one durable, spacious sleep system for two people. It’s ideal for anyone prioritizing roomy comfort, cold-weather insulation to around 0°F, and simple packing over ultralight weight. Backed by TETON Sports’ lifetime warranty, it suits weekend trips, extended camping where warmth matters, and couples who prefer sharing one large bag rather than combining two singles.

FAQ

Q: Is the Mammoth suitable for winter camping?

A: The Mammoth is rated to about 0°F and designed for cold-weather car or basecamp camping, offering strong insulation and draft protection.

Q: Can I machine wash this sleeping bag?

A: Yes—follow TETON’s care instructions: gentle machine wash, mild detergent, and fully air or low-heat dry to preserve the fill.