Feathered Friends Hummingbird UL 30 Sleeping Bag vs Sea to Summit Ultralight XR Insulated (Short)
Weight and specs compared for 2026 — and which one to choose.
Premium 30°F sleeping bag loaded with 900-fill goose down, ultralight mummy construction ideal for three-season alpine and trail use.
Full details →Ultralight insulated sleeping pad at 13.8 oz (390g) for 66-inch length with 3.6 R-value, lightest inflatable option available.
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 UL 30 Sleeping Bag 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 178 g (31%) lighter than the Feathered Friends Hummingbird UL 30 Sleeping Bag (568 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.