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Forclaz Trek MT900 5°C Down vs Therm-a-Rest NeoAir UberLite

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

Therm-a-Rest NeoAir UberLite is the lighter option — 580 g lighter than the Forclaz Trek MT900 5°C Down (70% less weight). If grams matter to you, that is the one to beat.
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Spec Forclaz Trek MT900 5°C Down Therm-a-Rest NeoAir UberLite
Weight 830 g · 0.830 kg · 1.83 lb 250 g · 0.250 kg · 0.55 lb
Brand Forclaz Therm-a-Rest
Category Sleep System Sleep System
Forclaz Trek MT900 5°C Down
830 g

700 fill power RDS down mummy-style sleeping bag with 90% duck down. Ideal for 3-season trekking with anatomical hood and adjustable footbox. 5°C comfort rating...

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Therm-a-Rest NeoAir UberLite
250 g

Lightest NeoAir pad. R-value 2.0 for warm conditions.

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Forclaz Trek MT900 5°C Down vs Therm-a-Rest NeoAir UberLite: which should you buy?

If saving weight is your priority, the Therm-a-Rest NeoAir UberLite wins — at 250 g it is 580 g (70%) lighter than the Forclaz Trek MT900 5°C Down (830 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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