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Therm-a-Rest Z Lite Sol vs Zpacks Sleeping Bag 20°F
Weight and specs compared for 2026 — and which one to choose.
Zpacks Sleeping Bag 20°F is the lighter option — 13 g lighter than the Therm-a-Rest Z Lite Sol (3% less weight). If grams matter to you, that is the one to beat.
Therm-a-Rest Z Lite Sol
410 g
Classic accordion-fold foam pad. R-value 2.0. Indestructible.
Full details →Therm-a-Rest Z Lite Sol vs Zpacks Sleeping Bag 20°F: which should you buy?
If saving weight is your priority, the Zpacks Sleeping Bag 20°F wins — at 397 g it is 13 g (3%) lighter than the Therm-a-Rest Z Lite Sol (410 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.
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