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Therm-a-Rest NeoAir XLite NXT Sleeping Pad vs Therm-a-Rest Vesper 32°F Sleeping Bag

Weight and specs compared for 2026 — and which one to choose.

Therm-a-Rest NeoAir XLite NXT Sleeping Pad is the lighter option — 196 g lighter than the Therm-a-Rest Vesper 32°F Sleeping Bag (36% less weight). If grams matter to you, that is the one to beat.
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Spec Therm-a-Rest NeoAir XLite NXT Sleeping Pad Therm-a-Rest Vesper 32°F Sleeping Bag
Weight 354 g · 0.354 kg · 0.78 lb 550 g · 0.550 kg · 1.21 lb
Brand Therm-a-Rest Therm-a-Rest
Category Sleep System Sleep System
Therm-a-Rest NeoAir XLite NXT Sleeping Pad
354 g

Ultralight inflatable sleeping pad with R-value 4.5. ThermaCapture and Triangular Core Matrix technology. WingLock valve. Regular size (25x72 in).

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Therm-a-Rest Vesper 32°F Sleeping Bag
550 g

Premium ultralight sleeping bag with 900-fill hydrophobic goose down. Rated to 32°F (0°C) with mummy fit and draft collar for warmth retention.

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Therm-a-Rest NeoAir XLite NXT Sleeping Pad vs Therm-a-Rest Vesper 32°F Sleeping Bag: which should you buy?

If saving weight is your priority, the Therm-a-Rest NeoAir XLite NXT Sleeping Pad wins — at 354 g it is 196 g (36%) lighter than the Therm-a-Rest Vesper 32°F Sleeping Bag (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.

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