Feathered Friends Hummingbird YF 30°F vs Sea to Summit Ether Light XR Insulated Regular
Weight and specs compared for 2026 — and which one to choose.
Ultralight 950-fill down bag rated to 30°F (-1°C).
Full details →Ultralight inflatable sleeping pad with air-sprung cell baffle tech; 16.6 oz for superior comfort and support
Full details →HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
Feathered Friends Hummingbird YF 30°F vs Sea to Summit Ether Light XR Insulated Regular: which should you buy?
If saving weight is your priority, the Sea to Summit Ether Light XR Insulated Regular wins — at 470 g it is 40 g (8%) lighter than the Feathered Friends Hummingbird YF 30°F (510 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.