Mammut Relax Fiber Bag
Best spacious synthetic sleeping bag for side sleepers seeking maximum comfort.
Designed for campers who prioritize comfort over extreme weight savings, this synthetic bag mimics the feel of home bedding. The central zipper and noise-reducing materials make it an approachable, user-friendly option for summer nights.
$209.00
More Relax options
Who it's for
- Side sleepers and campers who feel restricted by narrow sleeping bags
- Light sleepers sensitive to the sound of crinkling outdoor fabrics
- Backpackers who need versatile airflow options for varying overnight temperatures
Who should skip it
- Ultralight hikers prioritizing the smallest possible pack volume and weight
- Mountaineers planning trips into sub-zero alpine environments
- Users who prefer snag-free hardware for quick, effortless adjustments
Performance breakdown
Sleep Comfort
Noise-reducing hood and home-like feel prioritize rest above all else.
Temperature Regulation
Central zipper design makes venting heat intuitive and incredibly fast.
Moisture Resilience
Synthetic insulation maintains loft and warmth even in damp conditions.
Weight Efficiency
Heavier build prioritizes plush comfort over ultralight backpacking performance.
Draft Protection
Insulated zipper tubes and draft collar effectively seal out cold air.
User Experience
Thoughtful inclusions like a sleep mask elevate the entire camping experience.
Key Specs
Weight
2.71 lbs
Fill Weight
720 g
Temperature Rating
28 degrees Fahrenheit
Material
Polyamide and Recycled Polyester
Zipper Location
Center
Insulation Type
Ajungilak fiber
Water Resistant
Yes
Has Draft Collar
Yes
Has Stash Pocket
Yes
Know before you buy
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