Mountain Equipment Helium 600 - 3-Season Down Sleeping Bag

Mietprodukt

Made for alpine tours – light, warm and sustainable

If you rely on warmth and comfort during your mountain tours or trekking trips in the transitional seasons, this high-performance down sleeping bag offers everything you need. As a premium 3-season sleeping bag, it combines minimal weight with maximum insulation – perfect for bivouac nights, hut-to-hut tours, or ambitious trekking routes. This sleeping bag truly shines on cool nights during high-altitude tours.

Anatomically designed for warm, restful nights

The close-fitting Alpine Fit 2.0 hugs your body perfectly without restricting movement. This saves energy and reduces cold spots – ideal for overnight stays outdoors in changeable weather. The hood is ergonomically shaped, the thermal collar sits comfortably around your neck and prevents valuable warmth from escaping. Your feet also stay pleasantly warm thanks to the well-insulated foot section.

High-quality down filling with responsibility

The 620 grams of 90/10 duck down with a fill power of at least 700 cuin provides excellent insulation and packs down compactly. You benefit from a superb warmth-to-weight ratio – without compromising on sustainability. The down comes from certified, animal-friendly sources according to the Down Codex. So you can sleep soundly – ​​wherever your adventure takes you.

Protection from moisture and cold

The recycled Helium 20D outer fabric is exceptionally lightweight, breathable, and features a PFC-free DWR finish. It protects you from nighttime condensation or light rain – perfect for bivouacking under the open sky or tent camping in damp weather. The angled box baffles prevent the down from shifting and keep the warmth where it belongs: with you.

Good Night's Sleep – realistic, practical, honest

The "Good Night's Sleep" rating for this Mountain Equipment sleeping bag is a manufacturer's recommendation – based on practical tests and experience – and complements the official EN 13537/ISO 23537 standard (T-Comf, T-Limit, T-Extreme).

What does this information mean exactly?
"Good Night's Sleep Temperature" = Temperature at which you can sleep comfortably without feeling cold – even with prolonged use or under real-world conditions such as:

✅ lightweight sleepwear
✅ thin sleeping mat
✅ possibly damp weather
✅ Fatigue or hypothermia due to daily stages

Temperature scale according to EN standard

✅ T-Comf: approx. -5 °C (Eddy's temperature recommendation for this model is -3 to 0 degrees)
✅ Temperature limit: approx. -11 °C (limit for experienced sleepers)
✅ T-Extreme: down to -31 °C (emergency area, not a comfort zone)

Note on temperature perception:
The temperature ratings are provided by the manufacturer and are standardized. In practice, however, they can vary – especially if you are exhausted, hungry, or wet. The quality of your sleeping mat also has a significant impact, as down compresses at the back and therefore provides less insulation. A good sleeping mat is therefore essential for a warm night.

Technical specifications

✅ Area of ​​use: Trekking, bivouacking, mountain tours
✅ Temperature range according to EN standard: see above
✅ Filling: 620 g 90/10 duck down, min. 700 cuin fill power
✅ Outer material: recycled Helium 20D with PFC-free impregnation
✅ Design: Angled box chambers for optimal heat distribution
✅ Cut: Alpine Fit 2.0 with anatomical hood and foot section
✅ Pack sack: waterproof, with roll-top closure
✅ Weight: approx. 1030 g
✅ Pack size: approx. 25 × 23 × 20 cm

Ideal for your transitional tours with light luggage

This down sleeping bag is the right choice for anyone embarking on micro-adventures or longer trekking tours during the transitional seasons – and who values ​​sustainable performance. Whether in a tent, under the open sky, or in alpine regions: with this model, you'll sleep warmly, safely, and with peace of mind.

Take the opportunity to test your sleeping gear under real-world conditions before buying it: rent your outdoor equipment from us and find out what truly suits you. And if you're convinced – simply keep it! With us, it's: try before you decide. Rent your outdoor gear now and start your next adventure well-prepared.

Outdoor equipment for your adventure:
Tent | Sleeping bags | Sleeping mats | Backpacks | Outdoor clothing | Mountaineering equipment