Lightweight summer sleeping bag with high sleeping comfort
Lightweight, compact, and climate-regulating – the " DownWool Summer Light " is the ideal sleeping bag for trekking, biking, camping, and overnight stays in huts from spring to fall. The innovative DownWool® filling combines down and wool for pleasant warmth even in high humidity. Perfect for travel during the best seasons, sustainably produced, and thoughtfully designed – for restful sleep.
Grüezi bag® sleeping bags offer the best sleeping comfort and functionality
Grüezi bag sleeping bags have received numerous awards for their excellent insulation and well-thought-out designs.
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DownWool® - the better down: Unlike conventional down, DownWool® retains its insulating properties even in high humidity of up to 90%. This means DownWool® offers better thermal performance, even in cold, wet conditions.
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Wider temperature range: DownWool® sleeping bags have a wider temperature range where you feel comfortable. Wool balances temperature fluctuations like a light natural air conditioner.
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Drier sleeping environment: The blend of 70% animal welfare-certified down (RDS-certified) and 30% wool from the Alps in DownWool® sleeping bags creates a dry, balanced sleeping environment. Wool effectively wicks away moisture and provides warmth even when damp.
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Best sleep quality: longer sleep, faster falling asleep and better sleep through the night, all thanks to the wool content in the DownWool® insulation filling
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Well-thought-out cut for optimal freedom of movement: The comfortable cut allows the body to assume a relaxed position, ensuring a peaceful, restful sleep. Even in the mummy shape, you can sleep more soundly, as you can turn around both on your side with your leg bent and within the sleeping bag.
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Avoidance of cold bridges: Our slightly wider cut reduces unpleasant cold bridges caused by compressed insulation
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Lightweight and small pack size: ultra-light, robust and recycled materials save weight .
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OEKO-TEX® STANDARD 100 certification: Grüezi bag® products are harmless to human health.
FEATURES
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Pillow compartment : If you put a fleece jacket, for example, in the pillow compartment, the sleeping bag has a non-slip pillow.
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Adjustable hood with face baffle : The thermal baffle adapts perfectly to the shape of your head. When it's cold, only a small face hole remains open, thus reducing heat loss.
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Small thermal collar: Closes automatically in the zipper area, so that no cold bridge is created in the zipper area.
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Zipper
- Inside & outside pocket : For valuables and things you prefer to have close to you.
- Two-way auto-lock zipper : The zipper can be opened and closed from either end, inside or outside. The auto-lock prevents it from opening accidentally.
- White zipper : So that you can find the zipper more easily in the dark.
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Zipper with anti-snag zipper and sturdy webbing underneath : This makes the zipper even easier to operate without pinching the outer fabric.
- Zipper with lined zipper cover : so that heat cannot escape and no cold bridges are created.
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Foot ventilation system : The innovative zipper design allows your feet to be comfortably placed on top of the sleeping bag and excess heat can escape.
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Pre-shaped foot box: when lying down there is enough space in the sleeping bag to point your toes.
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Feater loops : A warming hip bag with heating element (Feater - The Feet Heater) can be installed additionally.
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Chamber construction : H-chambers, V-shaped (on the top), pre-shaped foot area with several chambers
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Scope of delivery : sleeping bag, compression bag, storage bag.
TECHNICAL DETAILS
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Temperature range according to ISO EN 23537-1:
T comf 45°F) / T lim 36°F / T ext 10°F.
Optimal range of use: ISO EN 23537-2 allows for a comparison of sleeping bags across manufacturers . Individual sensitivity to cold varies , so we recommend not going below the comfort range; sensitive individuals should even stay a few degrees above it.
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Size : Mummy sleeping bag with 86.6 x 33.5 x 19.7 inches (suitable for a body height up to 6`6" )
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Weight : approx. 1.87 lb + stuff sack
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Packed size : Ø 6.7 x 12.2 inches., compressed Ø 6.7 x 7.5 inches.
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Pack volume : 7 l, compressed 4.5 l
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Outer and inner fabric: uncoated and therefore very comfortable, ultra-light, robust, wind and water-repellent, recycled 20 denier 380T nylon (100% polyamide).
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Filling : 0,676 lbs DownWool® made of 70% high-quality down (80/20 with fill power at least 700+ cuin) and 30% mechanically refined wool
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Material labeling : Shell 100% polyamide, filling 70% down/30% wool - contains non-textile parts of animal origin.
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Area of use : the ideal companion for summer trekking and bike tours as well as camping & caravanning, in huts, for camping or for the Way of St. James.
WHAT IS DOWNWOOL®?
What makes this sleeping bag special is its innovative insulation: In a DownWool® sleeping bag, you’ll immediately notice the wide comfort temperature range—it never feels too cold or too warm. Additionally, the insulation naturally resists high humidity.
This is achieved through a mechanical blend of 70% RDS-certified down and 30% wool from the Alps. This combination is patent-pending and functions like a light, natural air conditioner.
Down: excellent insulation performance
High-quality down provides outstanding insulation at a low weight. However, in high humidity (from air, sweat, or condensation), down can clump and lose its insulating power. Grüezi bag solves this problem with the innovative DownWool® insulation.
Wool: effective moisture and temperature regulation
Thanks to the addition of wool, the down stays naturally drier and thus retains its insulating effect. Wool can absorb up to 30% of its own weight in moisture through its capillaries and gradually release it outward.
DownWool® remains insulating in up to 90% humidity. The wool fibers fluff up when moist, increasing loft and insulation by up to 30%, which further enhances the sleeping bag’s performance.
DownWool® not only effectively regulates moisture but also body temperature. Wool prevents cooling through evaporation and retains warmth even when damp—something no other material can do. Wool naturally creates a comfortable microclimate thanks to its unique temperature-balancing properties.
The body uses a lot of energy to regulate temperature. Wool supports this process with its excellent thermal-regulating abilities.
Wool also neutralizes unpleasant odors.
The result: excellent insulation and a wide comfort temperature range in which you can sleep well and comfortably. DownWool® is also more resilient to moisture, making DownWool® sleeping bags from Grüezi bag® popular all-rounders.
SUSTAINABILITY AND CLIMATE RESPONSIBILITY
Grüezi bag® is a CO₂-neutral company.
Animal welfare: RDS-certified down (CU 859743), mulesing-free sheep wool from Europe
OEKO-TEX® STANDARD 100 certified materials. This label ensures the textiles used are tested for harmful substances and safe for health.
PFC-free water-repellent treatment: durable and eco-friendly impregnation made from renewable raw materials (BeSoDRY-ECO)
Colors: We use selected BEMACRON dyes from the CHT Group. These dyes are non-toxic to nature and meet both Cradle to Cradle and bluesign® standards.
Recycled fabrics: GRS-certified recycled nylon used for both the outer and inner materials
Repair and refill service
Made in Germany
CARE INSTRUCTIONS
Washing
- The washing instructions can be found in the inner pocket of the sleeping bag.
- Wash the sleeping bag with a down detergent at a max. of 30 °C / 86 °F by hand or in the washing machine using the wool cycle. Turn inside out, close the zipper, run an extra rinse cycle, and do not use fabric softener.
- Remove from the machine, gently loosen up the filling, and spin again at max. 600 RPM.
Drying
- Dry in a tumble dryer at max. 60 °C / 140 °F with 2–3 tennis balls to help loosen the filling.
- Repeat drying cycles as needed. After each cycle, remove the bag from the dryer, shake it well, loosen the filling, and let it cool between cycles.
- The dryer should be set to a timed program to fully dry the down.
- If no dryer is available, place the sleeping bag on a drying rack on sunny days and shake it frequently to allow air to circulate from above and below.
When is the drying process complete?
- If the bag still doesn’t feel as thick as before, repeat the drying process until it feels even fuller than before.
- Depending on the outer material’s water resistance, drying may take a minimum of 2 days, depending on the dryer model.
- The down must be completely dry. If not dried and fluffed correctly, down can clump and permanently damage the sleeping bag.
- You’ll know it’s dry when it feels thicker and fuller than before. Damp down may smell musty—this odor disappears once fully dry.
TIP
- Down sleeping bags should occasionally or after each trip be dried with tennis balls in a dryer to remove excess moisture.
- Sleeping bags should be stored open and dry in the storage bag.
- When packing into the compression sack, stuff the sleeping bag foot-first—do not roll or fold it.
- Air-drying is better than washing. DownWool® sleeping bags rarely need washing, as wool naturally resists odors and dirt. For small stains, gently spot-clean. If heavily soiled, machine washing is possible.
- Always use a sleeping mat under the bag, as insulation beneath compresses and cannot trap air or heat. (More info on choosing the right mat is available here.)
ACCESSORIES
- Grüezi bag® Feater: A heated waist bag that can be used on its own or inside the sleeping bag for extra insulation
- Grüezi bag® Sleeping Bag Warmer: Adds up to 10 °C of warmth
- Replacement compression sack and storage bag
- Grüezi bag® Wool Mat Camping and WoolMat Camping Comfort: High-quality and comfortable camping mats
FAQ
Our FAQs: Find answers about fit, temperature range, and more.
Shipping
Orders placed by 11:00 a.m. (weekdays) ship the same day
Included: sleeping bag, compression sack, storage bag
Manufacturer
Grüezi bag is a brand of
Grüezi bag GmbH
Schmiedgasse 31
83075 Bad Feilnbach, Germany
Managing Director: Markus Wiesböck
Phone: +49 8064 / 906 29 220
Email: info@gz-bag.de
Website: https://gz-bag-usa.com
