← Gear database

Therm-a-Rest Vesper Quilt vs Zpacks Sleeping Bag 20°F

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

Zpacks Sleeping Bag 20°F is the lighter option — 153 g lighter than the Therm-a-Rest Vesper Quilt (28% less weight). If grams matter to you, that is the one to beat.
shopping_cart Check today's price on Amazon
Spec Therm-a-Rest Vesper Quilt Zpacks Sleeping Bag 20°F
Weight 550 g · 0.550 kg · 1.21 lb 397 g · 0.397 kg · 0.88 lb
Brand Therm-a-Rest Zpacks
Category Sleep System Sleep System
Therm-a-Rest Vesper Quilt
550 g

Premium 900-fill hydrophobic goose down quilt for 3-season backpacking. Pad attachment straps keep it secure through the night.

Full details →
Zpacks Sleeping Bag 20°F
397 g

Ultralight 900-fill down sleeping bag rated to 20°F.

Full details →

HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.

Therm-a-Rest Vesper Quilt vs Zpacks Sleeping Bag 20°F: which should you buy?

If saving weight is your priority, the Zpacks Sleeping Bag 20°F wins — at 397 g it is 153 g (28%) lighter than the Therm-a-Rest Vesper Quilt (550 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

Therm-a-Rest Vesper Quilt vs Sea to Summit Aeros Ultralight Pillow Therm-a-Rest Vesper Quilt vs Sea to Summit Aeros Ultralight Pillow (Regular) Therm-a-Rest Vesper Quilt vs NEMO Fillo Elite Therm-a-Rest Vesper Quilt vs Nemo Fillo Elite Wide UL Therm-a-Rest Vesper Quilt vs Nemo Equipment Tensor Elite Ultralight Therm-a-Rest Vesper Quilt vs NEMO Equipment Tensor Elite Sleeping Pad