Sea to Summit Aeros Ultralight Pillow (Regular) vs Sea to Summit Spark Pro Down Sleeping Bag
Weight and specs compared for 2026 — and which one to choose.
Inflatable ultralight camp pillow with a curved synthetic-fill surface and multi-function valve for comfort.
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.
Check price Full details →HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
Sea to Summit Aeros Ultralight Pillow (Regular) vs Sea to Summit Spark Pro Down Sleeping Bag: which should you buy?
If saving weight is your priority, the Sea to Summit Aeros Ultralight Pillow (Regular) wins — at 60 g it is 705 g (92%) lighter than the Sea to Summit Spark Pro Down Sleeping Bag (765 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.