Everything you need to know about sleeping bags
Actual temperatures, EN 13537 standards, warmth-to-weight ratio, maintenance — factual answers to help you choose with confidence.
All articles
77 articles

Entretien
Storing your sleeping bag off-season: methods, conditions, and mistakes to avoid
Storing a sleeping bag properly off-season preserves its loft and extends its lifespan to 10–15 years. Three essential conditions: comple...

Guide d'achat
Ultralight sleeping bag: weight thresholds, technologies, and trade-offs according to usage
Ultra-light sleeping bags (less than 1kg for a 0°C comfort rating) use 850-900 fill power down and 10-15 denier fabrics, reaching compres...

Guide d'achat
Women's sleeping bag: physiological differences and selection criteria
Women's sleeping bags incorporate real physiological differences: morphology (narrower shoulders, wider hips, average height of 1.60-1.65...

Guide d'achat
Double sleeping bag: advantages, disadvantages and alternatives for sleeping as a couple
The double sleeping bag is appealing for its promise of shared warmth and savings. But a 2-person sleeping bag requires real compromises ...

Guide d'achat
Winter sleeping bag: criteria and real-world temperatures for cold-weather bivouacking
A winter sleeping bag is not chosen like a 3-season bag. In France, "winter" can mean 0°C in the lowlands or -20°C in the high mountains....

Guide d'achat
Adult sleeping bag: differences from a child's bag and selection criteria
An adult sleeping bag is not chosen the same way as a child's. Size, metabolism, weight, and temperature vary significantly depending on ...

Guide d'achat
2-person sleeping bag: advantages and limitations
2-person sleeping bags are suitable for car camping and van-life where weight (2-3kg) is of little importance. Advantages: shared body he...

Technique
Extreme cold sleeping bag (-10 to -25°C): mountaineering criteria
Extreme cold sleeping bags (-10 to -25°C comfort) are designed for winter mountaineering and polar expeditions. 850-900 cuin down is mand...

Technique
Down fill: fill power and thermal performance
The cuin (cubic inches per ounce) measures the fill power of down: the volume occupied by 28 grams of expanded down. The higher the cuin,...

Technique
Sleeping bag liner: thermal gain, hygiene, and versatility depending on the material
The sleeping bag liner (sleeping bag insert) improves warmth by 3-10°C depending on the material: silk +5°C (150g, €30-50), fleece +8-10°...

Entretien
How to fold and store a sleeping bag: compression for transport, decompression for storage
Folding a sleeping bag requires two opposite approaches depending on how it is used. For trekking: maximum compression in a compression s...

Technique
Sleeping bag and humidity: bivy bag, hydrophobic down, integrated membrane, or synthetic
Protecting a sleeping bag from moisture requires trade-offs: a waterproof bivy bag (300-400g, for bivouacking without a tent), hydrophobi...
No time to read? Find the right bag in 4 questions.
The field guide analyzes your usage, temperature, budget, and weight priority to recommend suitable models.