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Big Agnes Rapide SL Insulated vs Sea to Summit Aeros Ultralight Pillow

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

Sea to Summit Aeros Ultralight Pillow is the lighter option — 481 g lighter than the Big Agnes Rapide SL Insulated (89% less weight). If grams matter to you, that is the one to beat.
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Spec Big Agnes Rapide SL Insulated Sea to Summit Aeros Ultralight Pillow
Weight 540 g · 0.540 kg · 1.19 lb 59 g · 0.059 kg · 0.13 lb
Brand Big Agnes Sea to Summit
Category Sleep System Sleep System
Big Agnes Rapide SL Insulated
540 g

Insulated air sleeping pad (regular) with 4.2 R-value, 3.25in thickness and quilted top baffles for stable, warm backcountry comfort.

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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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Big Agnes Rapide SL Insulated vs Sea to Summit Aeros Ultralight Pillow: which should you buy?

If saving weight is your priority, the Sea to Summit Aeros Ultralight Pillow wins — at 59 g it is 481 g (89%) lighter than the Big Agnes Rapide SL Insulated (540 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.

More sleep system comparisons