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Sea to Summit Aeros Ultralight Pillow vs Therm-a-Rest NeoAir XTherm NXT

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

Sea to Summit Aeros Ultralight Pillow is the lighter option — 371 g lighter than the Therm-a-Rest NeoAir XTherm NXT (86% less weight). If grams matter to you, that is the one to beat.
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Spec Sea to Summit Aeros Ultralight Pillow Therm-a-Rest NeoAir XTherm NXT
Weight 59 g · 0.059 kg · 0.13 lb 430 g · 0.430 kg · 0.95 lb
Brand Sea to Summit Therm-a-Rest
Category Sleep System Sleep System
Sea to Summit Aeros Ultralight Pillow
59 g

Lightest backpacking pillow at 2.1 oz. Compresses down to baseball size for ultralight trips.

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Therm-a-Rest NeoAir XTherm NXT
430 g

4-season inflatable sleeping pad with R-value 7.3.

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Sea to Summit Aeros Ultralight Pillow vs Therm-a-Rest NeoAir XTherm NXT: which should you buy?

If saving weight is your priority, the Sea to Summit Aeros Ultralight Pillow wins — at 59 g it is 371 g (86%) lighter than the Therm-a-Rest NeoAir XTherm NXT (430 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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