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Exped Ultra 6.5R Sleeping Pad (Medium Mummy) vs Sea to Summit Aeros Ultralight Pillow (Regular)

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

Sea to Summit Aeros Ultralight Pillow (Regular) is the lighter option — 280 g lighter than the Exped Ultra 6.5R Sleeping Pad (Medium Mummy) (82% less weight). If grams matter to you, that is the one to beat.
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Spec Exped Ultra 6.5R Sleeping Pad (Medium Mummy) Sea to Summit Aeros Ultralight Pillow (Regular)
Weight 340 g · 0.340 kg · 0.75 lb 60 g · 0.060 kg · 0.13 lb
Brand Exped Sea to Summit
Category Sleep System Sleep System
Exped Ultra 6.5R Sleeping Pad (Medium Mummy)
340 g

Lightweight insulated sleeping pad with leading weight-to-warmth ratio. Medium mummy size, 340g, perfect for all-season ultralight backpacking

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Sea to Summit Aeros Ultralight Pillow (Regular)
60 g

Inflatable ultralight camp pillow with a curved synthetic-fill surface and multi-function valve for comfort.

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Exped Ultra 6.5R Sleeping Pad (Medium Mummy) vs Sea to Summit Aeros Ultralight Pillow (Regular): which should you buy?

If saving weight is your priority, the Sea to Summit Aeros Ultralight Pillow (Regular) wins — at 60 g it is 280 g (82%) lighter than the Exped Ultra 6.5R Sleeping Pad (Medium Mummy) (340 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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