Grüezi Bag Wolle Survival – durable 3-season sleeping bag for demanding conditions

Description

Durable 3-season sleeping bag for demanding and changing conditions

Grüezi Bag Wolle Survival is designed for hiking, travel and expeditions where durability, moisture management, ventilation and insect protection are just as important as low weight. It combines temperature- and moisture-regulating wool with synthetic insulation and a highly durable, water-repellent outer fabric.

With a T Comfort of +4 °C and a T Limit of −1 °C, Wolle Survival covers a wide range of conditions from spring to autumn. Grüezi Bag recommends the model for practical use from approx. +4 to +18 °C.

A removable 3D mosquito net over the head, insect-protected foot ventilation and the ability to release excess heat make this model particularly well suited to humid, warm and insect-rich environments.

AlmWolle® and Synthdown for a stable sleeping climate

On the upper side, Wolle Survival combines a layer of lavalan® AlmWolle with a layer of Synthdown insulation. The wool helps regulate temperature and moisture inside the sleeping bag, while the synthetic insulation provides durable and reliable warmth.

This is particularly useful in changing weather conditions and areas with high humidity. Your body releases moisture throughout the night, and the wool helps manage this moisture and create a more stable and comfortable microclimate around the body.

Synthdown insulation is used on the underside. Synthetic insulation handles moisture well and retains much of its insulating performance even when conditions are not completely dry.

Temperature range for three-season use

Wolle Survival is temperature tested according to EN ISO 23537-1, with T Comfort +4 °C, T Limit −1 °C and T Extreme −17 °C. Grüezi Bag recommends a practical operating range of approx. +4 to +18 °C.

T Limit and T Extreme should not be interpreted as comfort temperatures. For general comparison between sleeping bags, T Comfort +4 °C is the most important standardised reference.

Perceived warmth is also affected by factors such as your sleeping mat, clothing, wind, humidity, food intake, physical condition and individual sensitivity to cold.

Removable 3D mosquito net

One of the most distinctive features of Wolle Survival is its removable 3D mosquito net. The net is suspended over the head using three small curved poles, keeping it away from your face while you sleep.

This provides protection against mosquitoes and other insects without the net resting directly against your skin. When not in use, the mosquito net can be stored in an integrated pocket on the compression stuff sack.

Foot ventilation with insect protection

The special zip construction allows you to slide your feet out of the sleeping bag and rest them on top when temperatures rise. This makes it easier to regulate your temperature during the night without having to open the entire sleeping bag.

An additional insect net is integrated into the foot section, allowing ventilation while keeping mosquitoes and other insects out of the sleeping bag.

This combination of insulation and effective ventilation makes Wolle Survival particularly versatile when temperature and humidity vary significantly throughout the day and night.

Durable and highly water-repellent outer fabric

The outer fabric is made from recycled 40D 290T nylon and is designed to be durable, breathable and highly water-repellent.

Compared with very lightweight sleeping bags, the more robust outer fabric offers greater resistance to wear and makes Wolle Survival particularly suitable for demanding outdoor use, travel and expeditions where the sleeping bag may be exposed to condensation, high humidity, vegetation and more direct contact with the surroundings.

More room for better sleeping comfort

Grüezi Bag places considerable emphasis on giving the body enough room to move naturally inside the sleeping bag. This makes it easier to find a comfortable sleeping position and to turn inside the sleeping bag, rather than having the entire bag move with you as you change position during the night.

Space also matters for insulation. If a sleeping bag fits too tightly, the body can compress the insulating layers. As the loft is reduced, the sleeping bag’s ability to retain warmth can also be reduced.

This is particularly noticeable with Survival XXL. The standard Survival is 80 cm wide at the shoulders and 50 cm wide at the foot, while Survival XXL increases this to an impressive 95 cm at the shoulders and 67 cm at the foot. XXL is therefore not simply a longer sleeping bag, but a substantially roomier version for larger users and anyone who prefers extra freedom of movement.

At the same time, the sleeping bag should not be unnecessarily large, as a greater internal volume means more air for your body to warm. Choosing the right size is therefore a balance between freedom of movement, allowing the insulation to retain its full loft and avoiding unnecessary internal volume.

3D thermal collar, Face Baffle and practical details

A 3D thermal collar around the shoulders and neck helps retain warm air inside the sleeping bag as temperatures fall. The adjustable hood features Grüezi Bag’s Face Baffle, which follows the shape of the head and helps reduce heat loss around the face.

The thermal collar drawcords can be stored in a dedicated pocket so that they do not hang loosely around your face during the night. An integrated pillow compartment also allows you to insert a fleece jacket, for example, and use it as a pillow without it sliding away while you sleep.

The sleeping bag also features both an internal and an external pocket for small items and valuables you want to keep within easy reach.

Zip designed for easy and reliable use

The two-way Auto-Lock zip can be operated from either end and from both inside and outside the sleeping bag. The Auto-Lock function helps prevent the zip from opening unintentionally during the night.

An insulated zip baffle reduces heat loss along the opening, while the anti-snag construction and robust protective webbing help prevent the outer fabric from becoming caught in the zip.

The light-coloured zip is also easier to locate and operate in the dark.

Pre-shaped footbox and anti-slip underside

The pre-shaped footbox provides plenty of room for the toes and reduces the risk of the insulation being compressed around the feet. This improves comfort while helping preserve insulation in an area where many people begin to feel cold first.

Anti-slip elements on the underside help keep the sleeping bag in position on the sleeping mat throughout the night.

Choose the right size

Wolle Survival is available in two sizes: Survival and Survival XXL. XXL provides not only additional length, but also considerably more room around the body.

Survival is recommended for body heights up to 185 cm. The sleeping bag is 215 cm long, 80 cm wide at the shoulders and 50 cm wide at the foot. It weighs approx. 1.5 kg and has a compressed pack volume of approx. 9.4 l.

Survival XXL is recommended for body heights up to 200 cm. The sleeping bag is 230 cm long, 95 cm wide at the shoulders and 67 cm wide at the foot. It weighs approx. 1.95 kg and has a compressed pack volume of approx. 13.7 l.

Survival XXL is therefore particularly suitable both for taller or larger users and for anyone who prioritises extra space and freedom of movement over the lowest possible weight and pack volume.

Choosing the right size is important for both comfort and warmth. An unnecessarily large sleeping bag contains more air for your body to warm, while a bag that is too short or tight can compress the insulation and reduce its insulating performance.

See Grüezi Bag’s size chart in the product gallery for a visual overview of sleeping bag length, shoulder width and foot width for both sizes.

Technical specifications

• Product: Grüezi Bag Wolle Survival
• Product type: Durable 3-season sleeping bag
• Construction: Mummy shape with layered insulation
• Temperature standard: EN ISO 23537-1
• T Comfort: +4 °C
• T Limit: −1 °C
• T Extreme: −17 °C
• Recommended temperature range: approx. +4 to +18 °C (Grüezi Bag’s recommendation)
• Upper-side insulation, layer 1: lavalan® AlmWolle, 85% wool / 15% PLA (Ingeo™), 60 g/m²
• Upper-side insulation, layer 2: Synthdown, 100% polyester, 150 g/m²
• Underside insulation: Synthdown, 100% polyester, 170 g/m²

Survival

• Recommended body height: up to 185 cm
• Sleeping bag length: 215 cm
• Shoulder width: 80 cm
• Foot width: 50 cm
• Weight: approx. 1.5 kg + stuff sack and mosquito net
• Compressed pack size: approx. Ø 21 × 27 cm
• Compressed pack volume: approx. 9.4 l

Survival XXL

• Recommended body height: up to 200 cm
• Sleeping bag length: 230 cm
• Shoulder width: 95 cm
• Foot width: 67 cm
• Weight: approx. 1.95 kg + stuff sack and mosquito net
• Compressed pack volume: approx. 13.7 l

• Outer fabric: recycled 40D 290T nylon
• Inner fabric: recycled 50D 320T polyester
• Mosquito net: removable 3D mosquito net over the head
• Foot ventilation: ventilation system with integrated insect net
• Thermal collar: 3D thermal collar
• Hood: adjustable with Face Baffle
• Zip: two-way Auto-Lock zip with anti-snag protection and insulated zip baffle
• Pillow compartment: yes
• Pockets: internal and external
• Footbox: pre-shaped
• Underside: anti-slip elements
• Feater loops: yes
• Included: sleeping bag, 3D mosquito net, compression stuff sack and storage bag

Material composition

Outer fabric: 100% polyamide.
Inner fabric: 100% polyester.
Upper-side filling, layer 1: 85% wool / 15% polylactide (PLA).
Upper-side filling, layer 2: 100% polyester.
Underside filling: 100% polyester.
Contains non-textile parts of animal origin.