Skip to product information
1 of 7

Near Zero Outdoor Gear

ZERO Mummy Sleeping Bag

ZERO Mummy Sleeping Bag

Regular price $399.50 USD
Regular price Sale price $399.50 USD
Sale Sold out
Shipping calculated at checkout.
Bag Sizes

Low stock: 10 left

Quantity

Product Description

The ZERO Mummy sleeping bag is built for cold-weather and high-altitude expeditions. It uses 850+ fill-power down, a durable water-resistant shell, hood design with pull-cords, and shoulder/zipper baffles to lock in warmth. Comfort rated around 14 °F and comfort limit 0 °F making it a serious mountaineering option.

Key Features

Exceptional Warmth & Comfort: Hooded design reduces heat loss and keeps your head warm, with shoulder and zipper baffles to block cold air and maintain core temperature. Adjustable collar and hood pull-strings help trap body heat for comfort in temperatures below 32°F (0°C).

Functional Design: Includes an internal pocket near the collar for essentials like a phone or flashlight, plus four small internal pouches designed to hold heat warmers for added warmth when needed.

Premium Construction: Built with durable, water-resistant materials and insulated with high-quality white duck down for an exceptional warmth-to-weight ratio. Responsibly sourced and certified to the RDS (Responsible Down Standard).

Compact & Portable: Packs down to approximately 13 x 7 inches in the included ripstop nylon compression sack, conserving valuable pack space, and comes with a mesh storage sack for proper long-term care.

Ideal for Various Conditions: Designed for mild to cold weather adventures and high-performance mountaineering, offering outstanding warmth compared to other sleeping bags in its class and price point.

Technical Specs

Best Use Backpacking/Camping/Mountaineering
Temperature Rating (F/C) Comfort: 14 F/ -10 C
Comfort Limit: 0 F/ -18 C
Weight Short: 2 lb. 3 oz. (1000 g)
Regular: 2 lb. 10 oz. (1200 g)
Long: 3 lbs. (1400 g)
Zipper Location Right
Material 10D taffeta nylon
Insulation Type White duck down
Fill 850+ fill power (RDS certified)
Short: 570 g of down fill
Regular: 750 g of down fill
Long: 1020 g of down fill
Shape Mummy
Fit (User Recommended Height) Short: Fits up to 5' 6" (168 cm)
Regular: Fits up to 6' (183 cm)
Long: Fits up to 6' 6" (198 cm)
Dimensions (L x shoulder/hip width) Short: 73 x 31/18 inches
Regular: 80 x 31/20 inches
Long: 87 x 31/20 inches
Gender Unisex

Shipping Time: Orders processed and shipped within 24-48 business hours of placement date. Shipped from Arizona. Delivered in 2-6 days with FREE GROUND SHIPPING on all orders over $99, that ship within the 48 contiguous United States. Additional shipping options available. 

Shipping

Thank you for shopping with Weston Outdoor Gear — where every piece of gear is built to last and made to explore.

All Weston Gear products handcrafted in-house are made to order. Each item is cut, sewn, and finished one at a time in our production studio to ensure the highest level of quality and craftsmanship.
Please allow 5–7 business days from your order date for your handcrafted gear to ship.

Orders that include partner or affiliate products (sold through the Weston Outdoor Gear marketplace) may ship separately and can vary in delivery times depending on each partner’s fulfillment schedule. Tracking information will be provided for all shipments as soon as they leave their respective facilities.

Once shipped, you’ll receive a tracking link so you can follow your gear’s journey straight to your door.

View full details