Cumulus Neo Quilt 450 vs Sea to Summit Ultralight XR Insulated (Short)
Weight and specs compared for 2026 — and which one to choose.
Ultra-lightweight quilt with 450g 900-fill goose down, closed footbox design. Comfort rating -2°C. 39 compartments with H-shaped baffles prevent cold spots and...
Full details →Ultralight insulated sleeping pad at 13.8 oz (390g) for 66-inch length with 3.6 R-value, lightest inflatable option available.
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Cumulus Neo Quilt 450 vs Sea to Summit Ultralight XR Insulated (Short): which should you buy?
If saving weight is your priority, the Sea to Summit Ultralight XR Insulated (Short) wins — at 390 g it is 220 g (36%) lighter than the Cumulus Neo Quilt 450 (610 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.