Marmot
Marmot Trestles Elite Eco 20 Sleeping Bag
$200Cheaper
Best Sleeping Bags · head-to-head
Marmot Trestles Elite Eco 20 Sleeping Bag vs Western Mountaineering UltraLite Sleeping Bag
A sourced, side-by-side comparison. Marmot Trestles Elite Eco 20 Sleeping Bag is cheaper at $200. Every spec and price links to its source.
Western Mountaineering
Western Mountaineering UltraLite Sleeping Bag
$660
Which is better: the Marmot Trestles Elite Eco 20 Sleeping Bag or Western Mountaineering UltraLite Sleeping Bag?
The Western Mountaineering UltraLite Sleeping Bag wins 1 of the 1 specs we compare head to head; the other wins 0. The Marmot Trestles Elite Eco 20 Sleeping Bag is the cheaper at $200. Get the Western Mountaineering UltraLite Sleeping Bag for the stronger spec sheet, the Marmot Trestles Elite Eco 20 Sleeping Bag to spend less.
See Marmot Trestles Elite Eco 20 Sleeping Bag on Amazon See Western Mountaineering UltraLite Sleeping Bag on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Marmot Trestles Elite Eco 20 Sleeping Bag | Western Mountaineering UltraLite Sleeping Bag |
|---|---|---|
| US price | $200 | $660 |
| Brand | Marmot | Western Mountaineering |
| Released | — | — |
| Temperature rating f | 20 | 20 |
| Insulation type | synthetic | down |
| Fill power | — | 850 |
| Shape | mummy | mummy |
| Packed weight (lb) | 2.37 | 1.81 |
| Packed size | 9.4 x 18.9 in | 7 x 13 in |
| Zipper side | left | left or right |
| Product note | HL-ElixR Eco Micro recycled synthetic insulation; dual-zipper with secondary vent zip; ISO comfort 32F, lower limit 21.6F; listed weight 1,077 g | 850+ FP ethically-sourced premium goose down; USA made; full-length #5 YKK zipper; 6'0" version weighs 1 lb 13 oz |
Sources — Marmot Trestles Elite Eco 20 Sleeping Bag: rei.com (verified 2026-06-20). Western Mountaineering UltraLite Sleeping Bag: westernmountaineering.com (verified 2026-09-21).
What's the difference between the Marmot Trestles Elite Eco 20 Sleeping Bag and Western Mountaineering UltraLite Sleeping Bag?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Insulation type: Marmot Trestles Elite Eco 20 Sleeping Bag synthetic vs Western Mountaineering UltraLite Sleeping Bag down
- Packed weight (lb): Marmot Trestles Elite Eco 20 Sleeping Bag 2.37 vs Western Mountaineering UltraLite Sleeping Bag 1.81
- Packed size: Marmot Trestles Elite Eco 20 Sleeping Bag 9.4 x 18.9 in vs Western Mountaineering UltraLite Sleeping Bag 7 x 13 in
- Zipper side: Marmot Trestles Elite Eco 20 Sleeping Bag left vs Western Mountaineering UltraLite Sleeping Bag left or right
- Product note: Marmot Trestles Elite Eco 20 Sleeping Bag HL-ElixR Eco Micro recycled synthetic insulation; dual-zipper with secondary vent zip; ISO comfort 32F, lower limit 21.6F; listed weight 1,077 g vs Western Mountaineering UltraLite Sleeping Bag 850+ FP ethically-sourced premium goose down; USA made; full-length #5 YKK zipper; 6'0" version weighs 1 lb 13 oz