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.
- 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.
- 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.
- 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.
- 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
- 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.
- Avoidance of cold bridges: Our slightly wider cut reduces unpleasant cold bridges caused by compressed insulation
- Lightweight and small pack size: ultra-light, robust and recycled materials save weight .
- OEKO-TEX® STANDARD 100 certification: Grüezi bag® products are harmless to human health.
FEATURES
- Pillow compartment :If you put a fleece jacket, for example, in the pillow compartment, the sleeping bag has a non-slip pillow.
- Adjustable hoodwithface 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.
- Inside & outside pocket : For valuables and things you prefer to have close to you.
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Zipper
- 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.
- 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.
- 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.
- Pre-shaped foot box: when lying down there is enough space in the sleeping bag to point your toes.
- Feater loops :A warming hip bag with heating element (Feater - The Feet Heater) can be installed additionally.
- Chamber construction : H-chambers, V-shaped (on the top), pre-shaped foot area with several chambers
- 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 / Tlim 36°F / T ext10°F.
Optimal range of use: ISO EN 23537-2 allows for a comparison of sleeping bags from different manufacturers. Individuals' sensitivity to cold varies , so we recommend not going below the comfort range; sensitive individuals should even stay a few degrees above it.
- Size : Mummy sleeping bag measuring 77" x 30" x 19.7" inches (suitable for a body height of up to 5`9" ).
- Weight :approx. 1.6 lb + stuff sack
- Packed size : compressed Ø 6.7 x 6.7 inches
- Pack volume : 6 l, compressed 4 l
- Outer and inner fabric: uncoated and therefore very comfortable, ultra-light, robust, wind and water-repellent, recycled 20 denier 380T nylon (100% polyamide).
- Filling : 0.46 lb DownWool® made from 70% high-quality down (80/20 with fill power at least 700+ cuin) and 30% mechanically refined wool
- 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®?
The special feature of this sleeping bag is its innovative insulation. In a DownWool® sleeping bag, you immediately feel a wide comfort temperature range — not too cold, not too hot. The insulation is also naturally more resistant to high humidity.
This is achieved through a mechanical blend of 70% animal-welfare certified down (RDS-certified) and 30% wool from the Alps. This unique combination is patent-pending and functions like a natural, lightweight climate control system.
Down: excellent insulation performance
High-quality down insulates extremely well at low weight. However, down tends to clump under high humidity (air, sweat, condensation), losing its insulating power. Grüezi bag solves this with the innovative DownWool® insulation.
Wool: effective moisture and temperature regulation
Thanks to the addition of wool in DownWool®, the down stays naturally drier and 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® retains its insulating properties even in up to 90% humidity. When exposed to moisture, wool fibers expand and increase loft by up to 30%, further boosting insulation.
DownWool® not only regulates moisture effectively but also body temperature. Wool prevents cooling from evaporation and maintains warmth even when damp — something no other material can do. It creates a naturally cozy microclimate thanks to its unique climate-balancing properties.
The body uses a lot of energy to regulate its temperature — wool supports this process due to its excellent thermoregulating qualities.
Wool also naturally neutralizes unpleasant odors.
The result: excellent insulation and a wide temperature comfort zone, helping you sleep well and feel comfortable. DownWool® is also more resilient in humid conditions, making DownWool® sleeping bags from Grüezi bag® popular all-rounders.
SUSTAINABILITY AND CLIMATE RESPONSIBILITY
Grüezi bag® is a CO₂-neutral company.
Animal welfare: Animal-welfare certified down (RDS-certified CU 859743), mulesing-free sheep wool from Europe
OEKO-TEX® STANDARD 100 certification for all materials used — guaranteeing the product is free from harmful substances
PFC-free finish: durable water- and dirt-repellent impregnation made from renewable raw materials (BeSoDRY-ECO)
Colors: Selected BEMACRON dyes from the CHT Group — non-toxic to nature and compliant with Cradle to Cradle and bluesign® standards
Recycled fabrics: GRS-certified recycled nylon for both outer and inner materials
Repair and refill services
Made in Germany
CARE INSTRUCTIONS
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Washing
Washing instructions can be found in the sleeping bag’s inner pocket.
- The sleeping bag can be washed by hand or in the washing machine on a wool cycle at max. 30 °C / 86 °F using a down-specific detergent. Turn it inside out, close the zipper, run an extra rinse cycle, and do not use fabric softener.
- Remove the item, loosen it up, and run another spin cycle at max. 600 RPM.
Drying
Dry in a tumble dryer at max. 60 °C / 140 °F with 2–3 tennis balls to loosen the filling.
Repeat drying cycles several times. After each round, remove the item, shake it out, and let it cool down before continuing.
Use a time-based program to ensure the down dries completely.
If not using a dryer, lay the sleeping bag out in the sun on a drying rack and shake it frequently so air circulates both top and bottom.
When is the drying process complete?
If the sleeping bag still doesn't feel as thick as before, repeat drying until it feels fuller than before.
Drying time varies depending on the outer material’s water resistance (at least 2 days, possibly longer depending on dryer type).
Down must be fully dried. If not dried and fluffed properly, it may clump and become irreparably damaged.
You'll know it’s dry when it feels plump and full. Damp down can smell musty, but the smell disappears once fully dried.
TIP
- Down sleeping bags should occasionally (or after every trip) be tumble-dried with tennis balls to remove excess moisture.
- Store sleeping bags open and dry in the storage sack.
When packing into the compression sack, stuff from the foot end — don’t roll or fold.
- Better than washing is airing out the sleeping bag. DownWool® sleeping bags rarely need washing since wool naturally resists odor and dirt. Spot clean small stains gently, and wash only when heavily soiled.
- Always use a sleeping pad — insulation under the sleeping bag gets compressed and can’t trap heat or air. You can find more information about the right sleeping pad here.
COMPATIBLE ACCESSORIES
- Grüezi bag® Feater: Heated waist wrap that can be used alone or inside the sleeping bag for extra insulation
- Grüezi bag® sleeping bag warmer: an extra insulating layer (raises comfort temperature by up to 50°F)
- Replacement compression and storage bags
- Grüezi bag® Wool Mat Camping or WoolMat Camping Comfort: premium, comfortable camping pads
FAQ
See our FAQs for answers on fit, temperature ranges, and more.
SHIPPING
Orders placed by 11:00 a.m. (weekdays) ship the same day
Included in delivery: sleeping bag, compression sack, storage sack
MANUFACTURER
Grüezi bag GmbH
Schmiedgasse 31
83075 Bad Feilnbach
Germany
CEO: Markus Wiesböck
Phone: +49 80 64 / 906 29 220
Email: info@gz-bag.de
Website: https://gz-bag-usa.com
