Hyperlite Mountain Gear 20-Degree Quilt (Regular) vs Therm-a-Rest Hyperion 20

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

Therm-a-Rest Hyperion 20 is the lighter option — 3 g lighter than the Hyperlite Mountain Gear 20-Degree Quilt (Regular) (1% less weight). If grams matter to you, that is the one to beat.

Spec	Hyperlite Mountain Gear 20-Degree Quilt (Regular)	Therm-a-Rest Hyperion 20
Weight	570 g · 0.570 kg · 1.26 lb	567 g · 0.567 kg · 1.25 lb
Brand	Hyperlite Mountain Gear	Therm-a-Rest
Category	Sleep System	Sleep System

Hyperlite Mountain Gear 20-Degree Quilt (Regular)

570 g

Ultralight 20F down quilt with 1000FP DWR-treated down, 7D ripstop shell, 3D baffles and pad attachment straps.

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Therm-a-Rest Hyperion 20

567 g

900-fill Hyperdry down mummy sleeping bag rated to 20F/-6C. 10D ripstop nylon shell with DWR treatment. Regular size.

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Hyperlite Mountain Gear 20-Degree Quilt (Regular) vs Therm-a-Rest Hyperion 20: which should you buy?

If saving weight is your priority, the Therm-a-Rest Hyperion 20 wins — at 567 g it is 3 g (1%) lighter than the Hyperlite Mountain Gear 20-Degree Quilt (Regular) (570 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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