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NEMO Equipment Eclipse All-Season Sleeping Pad vs Therm-a-Rest Hyperion 20F/-6C (Regular)

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

NEMO Equipment Eclipse All-Season Sleeping Pad is the lighter option — 113 g lighter than the Therm-a-Rest Hyperion 20F/-6C (Regular) (20% less weight). If grams matter to you, that is the one to beat.
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Spec NEMO Equipment Eclipse All-Season Sleeping Pad Therm-a-Rest Hyperion 20F/-6C (Regular)
Weight 454 g · 0.454 kg · 1.00 lb 567 g · 0.567 kg · 1.25 lb
Brand NEMO Equipment Therm-a-Rest
Category Sleep System Sleep System
NEMO Equipment Eclipse All-Season Sleeping Pad
454 g

R-value 6.2 with heavily dimpled surface for cold weather insulation in 4-inch thickness.

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Therm-a-Rest Hyperion 20F/-6C (Regular)
567 g

Ultralight 20F down mummy bag with 900-fill Nikwax Hydrophobic Down for fast-and-light backpacking.

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NEMO Equipment Eclipse All-Season Sleeping Pad vs Therm-a-Rest Hyperion 20F/-6C (Regular): which should you buy?

If saving weight is your priority, the NEMO Equipment Eclipse All-Season Sleeping Pad wins — at 454 g it is 113 g (20%) lighter than the Therm-a-Rest Hyperion 20F/-6C (Regular) (567 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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