Big Agnes Lost Ranger Sleeping Bag
Best spacious sleep system for active side sleepers in the backcountry
This modular system offers unmatched versatility by combining two distinct bags into one adaptable sleep setup. It excels at managing temperature fluctuations across seasons while keeping the sleeper securely anchored to their pad throughout the night.
$399.95
at
Outland USA
More Lost Ranger options
Who it's for
- Active sleepers who frequently slide off their sleeping pads
- Side sleepers and campers who prioritize comfort and movement
- Backpackers camping in damp or humid environments
Who should skip it
- Minimalist hikers looking for a standalone sleeping solution
- Ultralight backpackers with very limited pack space
- Ounce-counters seeking the absolute lightest gear available
Performance breakdown
Thermal Versatility
The 3N1 modular system adapts effortlessly to fluctuating seasonal temperatures.
Pad Integration
Secures your mattress perfectly, eliminating midnight rolling and cold spots.
Moisture Resistance
Downtek insulation maintains loft and warmth even in damp backcountry conditions.
Weight-to-Warmth Ratio
Solid performance, though the modular design adds slight bulk for ultralighters.
Sleep Comfort
Spacious design and dedicated pillow sleeve create a home-like sleeping experience.
Build Quality
Durable recycled materials offer a sustainable, long-lasting construction for frequent use.
Key Specs
Temperature Rating
15 Degrees F
Insulation Type
650-fill Downtek
Shell Material
Recycled 20D polyester
Lining Material
Recycled 20D polyester
Weight
2.7 lbs
Max User Height
78 inches
Sleeping Bag Shape
Mummy and Semi-rectangular
Sleeping Bag Type
Backpacking
Water Resistant
Yes
Zipper Location
Side
What Reviewers Say
Know before you buy
Still have a question?
Ask Metto anything about the Big Agnes Lost Ranger Sleeping Bag before you decide.