Best Sleeping Bags · Western Mountaineering · Updated June 2026
UltraLite Sleeping Bag: specs and price (2026)
UltraLite Sleeping Bag has a US price of $640 (MSRP starting price (6'0" length) per westernmountaineering.com; up to $685 for 6'6"). Below is its full, sourced spec sheet — every value links to the source and the date we captured it.
Specifications
| Price (US) | $640 MSRP starting price (6'0" length) per westernmountaineering.com; up to $685 for 6'6" |
|---|---|
| Brand | Western Mountaineering |
| Released | — |
| temperature rating f | 20 |
| insulation type | down |
| fill power | 850 |
| shape | mummy |
| packed weight lb | 1.81 |
| packed size | 7 x 13 in |
| zipper side | left or right |
| product note | 850+ FP ethically-sourced premium goose down; USA made; full-length #5 YKK zipper; 6'0" version weighs 1 lb 13 oz |
Source: westernmountaineering.com (verified 2026-06-20) · corroborated by backcountry.com. Verified directly from westernmountaineering.com: 20F rating, 850+ FP premium goose down, mummy, 6'0" weighs 1 lb 13 oz (1.81 lb), packed size 7x13 in, left or right zipper, price $640-$685 across lengths. Weight listed is for 6'0". Corroboration URL updated to Backcountry listing.
Frequently asked questions
How much does the UltraLite Sleeping Bag cost?
The UltraLite Sleeping Bag has a US price of $640 (MSRP starting price (6'0" length) per westernmountaineering.com; up to $685 for 6'6"), as of 2026-06-20.
What are the UltraLite Sleeping Bag's key specs?
UltraLite Sleeping Bag (Western Mountaineering): temperature rating f 20, insulation type down, fill power 850, shape mummy, packed weight lb 1.81. Full sourced spec sheet verified 2026-06-20.