Western Mountaineering AlpinLite 20°F Sleeping Bag
ELITE tier
Western Mountaineering has been sewing sleeping bags in San Jose, California since 1967, and the AlpinLite is what half a century of American craftsmanship looks like at 20 degrees.
Origin
Made in USA
Warranty
Unlimited lifetime warranty against defects in materials and workmanship for the original owner. Covers fabric defects, zipper failures, seam separations, and fill issues. Excludes normal wear and tear, accidental damage, improper care, and environmental deterioration. All repairs handled in-house at the San Jose, CA factory.
Price
~$720 (Heirloom)
The fill is 850+ fill power ethically-sourced goose down — the premium tier, where a handful of clusters holds more heat than a fistful of cheaper fill — packed into a wider-than-mummy girth designed for side sleepers who refuse to lie rigid. The 12-denier ExtremeLite shell is genuinely thin, a deliberate tradeoff for warmth-to-weight ratio that rewards careful handling with decades of reliable loft.
The math justifies the price: at $720 and a conservative 20-year lifespan, the cost is $36 per year — less than most people spend on a single night in a motel. Western Mountaineering backs this with an unlimited lifetime warranty and handles repairs in-house at the same San Jose factory where the bag was made, including an overfill service that adds down in targeted zones to boost warmth rating on aging bags.
Replacement zipper sliders ship for DIY repair. The factory has been making this bag by hand for decades, knows every seam, and will service it long after discount competitors have stopped answering the phone.