Therm-a-Rest Vesper 20F vs Therm-a-Rest Z-Lite Sol Regular Pad
Weight and specs compared for 2026 — and which one to choose.
Ultralight quilt with 900-fill hydrophobic Nikwax Treated Down. Rated 20°F with neck baffle and footbox snap. Among lightest mainstream quilts.
Full details →Foam sleeping pad regular, 14oz, R-value 2.0, reflective aluminum layers
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Therm-a-Rest Vesper 20F vs Therm-a-Rest Z-Lite Sol Regular Pad: which should you buy?
If saving weight is your priority, the Therm-a-Rest Z-Lite Sol Regular Pad wins — at 397 g it is 153 g (28%) lighter than the Therm-a-Rest Vesper 20F (550 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.