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Big Agnes Rapide SL Insulated vs Mountain Hardwear Ghost Whisperer 20°F

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

Mountain Hardwear Ghost Whisperer 20°F is the lighter option — 1 g lighter than the Big Agnes Rapide SL Insulated (0% less weight). If grams matter to you, that is the one to beat.
Spec Big Agnes Rapide SL Insulated Mountain Hardwear Ghost Whisperer 20°F
Weight 540 g · 0.540 kg · 1.19 lb 539 g · 0.539 kg · 1.19 lb
Brand Big Agnes Mountain Hardwear
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.

Check price Full details →
Mountain Hardwear Ghost Whisperer 20°F
539 g

Ultralight 800-fill down sleeping bag in minimalist design.

Full details →

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Big Agnes Rapide SL Insulated vs Mountain Hardwear Ghost Whisperer 20°F: which should you buy?

If saving weight is your priority, the Mountain Hardwear Ghost Whisperer 20°F wins — at 539 g it is 1 g (0%) 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