One Planet Sonder -8 800+DWR Sleeping Bag

Overview

The Sonder sleeping bag is a streamlined, practical bag with versatile features, a spacious cut and a lighter build, designed for comfort and warmth year-round. Offered in three temperatures, rated to the lower limit for both males (M) and females (F): -5 M (+1 F) °C or -8 M (-1 F) °C or -10 M (-3 F) °C tested in accordance with ISO 23537-1. The Sonder is available in small, regular and large sizes and filled with 800-850 loft Non PFC Hydrophobic Down. The tapered rectangular shape gives space to move, while the Vertical V-baffle system and draft tube keep warmth where you need it (even as you wriggle around!). The shell is made from durable, Non PFC water-repellent and highly breathable 10 D Vapour Vent V2 fabric, with a full-length YKK #5 zip and anti-snag locking slider. A separate foot zip allows the sleeping bag to be opened fully to manage warmth.

Baffle Construction
ONE PLANET baffle technology maximises thermal efficiency.

The Vertical-V baffle system uses vertical and V-baffles to keep our lofty down in its precise location, no matter how you wriggle and roll. Box wall baffles connect the outer shell and internal fabric, creating 3D chambers that promote lofting, aid even insulation and stop draughts. The differential cut also assists lofting: the internal fabric is cut narrower than the outer shell, making the bag’s inner circumference smaller than its outer.

Zips
Every detail counts. We use YKK #5 locking zips with an anti-snag slider. The anti-snag covers make jamming zips a thing of the past, while the YKK #5 zip is more reliable, durable and lasts longer than lower-gauge zips.

Using a locking slider stops the zip from creeping open, so it will stay where you want it to for a good night’s sleep.

Vapour Vent V2
The Vapour Vent (V2) fabrics are lightweight, breathable nylon with Non PFC water-repellent treatment that promotes hands-free moisture management.

The smooth fabrics are light and warm to the touch, ideal for use on multi-day journeys. The tight weave and high thread count ensure they are ‘downproof by construction’. The majority of our bags use the silky, light, 10-denier version both inside and out, while some use the more durable 20-denier option.

Hydrophobic Down
All ONE PLANET down has been treated with a Non PFC hydrophobic water repellency application. This causes the down to repel water rather than absorb it, minimising clumping and helping the down in your sleeping bag stay dry and lofty.

Hydrophobic Down allows your sleeping bag to dry quicker and stay warm for longer, and is especially important for bags used on multiday journeys or in wet conditions.

Down Distribution
In a ONE PLANET Sonder sleeping bag, 55 per cent of the down fill is on the top and 45 per cent is on the bag’s base. We’ve selected this distribution of down after carefully considering how real people move and sleep – after all, we want it to work in real life! This down distribution ensures you stay warm in every position, preventing a cold back as you roll, wriggle and move.

Premium Loft
The quality of down used in a Nitrous sleeping bag makes a huge difference to its warmth, weight, durability and compactness, as well as the loft recovery of the fill. We use 800-850 loft Hydrophobic Down Non PFC – our premium choice and a must for the gram counters.

Ethically-Sourced Down
ONE PLANET takes its responsibility to uphold the highest standards of animal welfare seriously. Our down is gathered in a way that meets our strict ethical and quality standards, and is sourced as a by-product from the food and meat industry. We source from certified facilities and audit with the IDFL (International Down and Feather Laboratory). In our Melbourne factory we hold only our own audited batches of down: there is no chance of cross contamination.

Filled In Melbourne
Each Sonder sleeping bag is filled to order, in our Melbourne factory – usually the day after the order is placed! We’ve been filling our sleeping bags in Australia for more than 40 years: it’s the best way to ensure premium-quality, freshly-made bags.

We can personally embroider every stuff sack. It brings us joy to make your bag as unique as you are.

Design Philosophy
Our design innovations have led the way since 1980, both locally and globally. Our sleeping bags are designed after careful consideration of real sleep – how we lie, move and lose warmth – and real people, with ranges made to fit females and males of all shapes and sizes.

ONE PLANET sleeping bags combine 40 years of manufacturing experience with world-leading materials, modern scientific testing and the passion to keep improving.

How Warm Will I Be?
ISO 23537-1 temperature testing provides a temperature limit at which a “standard male” or “standard female” will sleep in thermal equilibrium (have a comfortable night’s sleep).

Both the ‘standard male’ and ‘standard female’ are based on a 25-year-old who is fit and healthy. If you’re older or younger, you may sleep colder than the ‘standard’, so we would recommend considering a warmer bag. Your other equipment (sleeping mat, pillow, tent style) the environment (weather, location) and your biology can affect warmth over the night.

The Importance Of Independent ISO 23537-1 Testing
Each ONE PLANET Sonder sleeping bag is temperature rated in accordance with the International Organisation for Standardisation 23537-1 (Requirements for sleeping bags). This is the only globally recognised standard for the temperature testing of sleeping bags, and gives ratings for both females and males. Testing sleeping bags to ISO 23527-1 allows users to make informed, educated and accurate decisions.

The ISO 23537-1 testing methods allows objective comparisons of the warmth of different shapes (mummy and tapered rectangular), sizes (small, regular and large), fill quality (synthetic fill, 700+ down fill power or 800+ down fill power), construction and design.

Not all manufacturers test to this standard, nor do they give information about how they arrive at their temperature ratings. As a result, care should be taken when comparing claims of warmth.

Features

• Tapered rectangular shape gives a Sonder sleeping bag versatility and roomy comfort
• Box-wall baffles give maximum thermal efficiency
• Vertical-V baffling system reduces down migration, keeping it trapped where you need it most
• Differentially cut baffles promote full and complete lofting of down
• The half-moon foot-box is wide and cosy, while base draft tubes keep you warm and toasty
• The contoured hood encloses your head, cinching tight while leaving enough space for your nose and mouth
• A draught tube along the zip insulates the zipper area, keeping warmth in
• Full-length side zip runs from hood to ankle: a YKK #5 with locking slider and innovative, anti-snag cover
• Independent zip on the foot (from ankle to ankle) can be opened fully for extra ventilation
• The two zips meet above the ankle, with a 10 cm crossover to keep draughts out
• Selecting a zip side is easy: when lying in a sleeping bag, a left-hand zip (LH) is on your left side
• Joined at the zip: full-length zips allow models with compatible left and right zips to be zipped together
• Hydrophobic Down Non PFC repels water, helping down stay lofty in all conditions
• Ethically-sourced Hydrophobic Down Non PFC in 800-850 loft
• Water-resistant thread is used to make a durable, well-sealed sleeping bag

Specifications

Intended use: bushwalking, camping

Temperature rating: independently tested in accordance with ISO 23537-1

Available sizes: small, regular, large

Shape: tapered rectangular

Baffle construction: Vertical-V baffle system (vertical/V-baffles) with box wall construction

Zip: YKK #5 with locking slider and anti-snag cover

Zip configuration: full-length zip with separate, ankle-to-ankle foot zip

Zip side: small in RH; regular with RH or LH zips; large with LH
When lying on your back in a sleeping bag: a left or LH zipper is on your left side, a right or RH is on your right side.

Zip pull: glows in the dark

Shell fabric: 10-denier Vapour Vent V2. Downproof by construction, highly breathable, with Non PFC water repellent treatment

Internal fabric: 10-denier Vapour Vent V2. Downproof by construction, highly breathable, with Non PFC water repellent treatment

Down loft: 800-850 loft, tested by the IDFL

Down distribution: 55% top, 45% bottom

Down treatment: DWR Non PFC (hydrophobic down)

Booster compatible: Quest series boosters (view instructions)

Compression stuff sack: included (view instructions)

Storage bag: included

Hanging loops: Yes, located at the footbox