Enlightened Equipment Convert 20 vs Sea to Summit Spark Pro Down Sleeping Bag
Weight and specs compared for 2026 — and which one to choose.
Convertible 20-degree quilt with 850 fill water-repellent down that can be sealed into a full enclosure or opened flat.
Check price Full details →Ultralight down sleeping bag at 765g with 900+ fillpower RDS-certified down, 15°F rating and Free-Flow Zip system for versatility.
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Enlightened Equipment Convert 20 vs Sea to Summit Spark Pro Down Sleeping Bag: which should you buy?
If saving weight is your priority, the Sea to Summit Spark Pro Down Sleeping Bag wins — at 765 g it is 7 g (1%) lighter than the Enlightened Equipment Convert 20 (772 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.