Zpacks
Mummy Sleeping Bag
Sold by the people who make it — no third-party seller in between.
RidgeNote is reader-supported: if you buy through the retailer links below, we may earn an affiliate commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases.
Manufacturer list price (MSRP) — 10F (-12C) / Broad-Long (Fits up to 60" / 6' 6") / Azure Blue Shell / Navy Blue Liner
$669.00
Retailer prices change, so we show the manufacturer list price for each version and link out for you to check the current price.

Overview
Featuring a hood and a full length 2-way side zipper with an integrated draft tube and zipper guard to keep it breeze-free, the Mummy Bag will keep you warm, cozy, and comfy in the backcountry.
Specs
- Brand
- Zpacks
- Weight
- 625 g · 22.0 oz
- Fill
- not published by the manufacturer
- Shape
- Mummy
- Fill Material — Source: manufacturer · checked 2026-08-23
- Shape — Source: manufacturer · checked 2026-08-23
Weight vs. category
28% lighter than the category average.
How it measures up
Against every one of the sleeping bags & quilts in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
- Weight
- 1.38 lb (625 g)
- Lighter than 63% of 24 weighed · #9 lightest
- -32% vs the median 2.04 lb
The lightest of the sleeping bags & quilts on record is Gossamer Gear Cumulus x Gossamer Gear Aerial 330 Sleeping Bag at 11.6 oz — 296 g less.
RidgeNote verdict
Similar — lighter or cheaper
Related reading
What Is the Lightest 20 Degree Sleeping Bag in 2026
See how NEMO, Kelty, and Sea to Summit 20 degree bags compare by weight, price per ounce, and rank across the current shelf for 2026.
What's the Lightest Ultralight Sleeping Bag Worth Buying in 2026?
RidgeNote ranks 24 ultralight sleeping bags and quilts by published weight, from 11.6 oz to 72.0 oz, so you know what going lighter costs in ounces.
What Is the Lightest 30 Degree Sleeping Bag in 2026?
See which 30 degree sleeping bags and quilts weigh least, ranked by grams, ounces, and price per ounce across the full shelf.
Manufacturer list price (MSRP)
from $579.00