Sea to Summit Ember Sleeping Bag vs Therm-a-Rest Vesper 32F Down Quilt
Weight and specs compared for 2026 — and which one to choose.
Three-season sleeping bag with 850+ UltraDry hydrophobic down, 5.1L pack size, and a rectangular zipper profile for comfort. Men's regular size.
Full details →Premium ultralight quilt with 900-fill hydrophobic down. Rated 32F/0C. At 550g it is the lightest mainstream quilt in its temperature class.
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Sea to Summit Ember Sleeping Bag vs Therm-a-Rest Vesper 32F Down Quilt: which should you buy?
If saving weight is your priority, the Therm-a-Rest Vesper 32F Down Quilt wins — at 550 g it is 59 g (10%) lighter than the Sea to Summit Ember Sleeping Bag (609 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest sleep system page, or browse the full gear weight database.