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Sea to Summit Aeros Ultralight Pillow vs Therm-a-Rest Z Lite Sol

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

Sea to Summit Aeros Ultralight Pillow is the lighter option — 351 g lighter than the Therm-a-Rest Z Lite Sol (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 Z Lite Sol
Weight 59 g · 0.059 kg · 0.13 lb 410 g · 0.410 kg · 0.90 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 Z Lite Sol
410 g

Classic accordion-fold foam pad. R-value 2.0. Indestructible.

Full details →

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Sea to Summit Aeros Ultralight Pillow vs Therm-a-Rest Z Lite Sol: which should you buy?

If saving weight is your priority, the Sea to Summit Aeros Ultralight Pillow wins — at 59 g it is 351 g (86%) 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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