Mountain Equipment Helium 600 Sleeping Bag Regular

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All about this product



Crafted with precision, each sleeping bag from Mountain Equipment boasts a unique foot piece section tailored to its specific use. In the case of the Helium range, the Trapezium 4 foot piece is designed for maximum lightness and compressibility. This innovative four-part baffle system stands as their lightest and most technical solution, prioritizing the lowest possible weight.

Recognizing the significance of heat loss through the head, Mountain Equipment has engineered a hood with five baffles, creating a truly anatomical shape to envelop your head in luxurious warmth. The Gemini System takes insulation optimization further, featuring two overlapping anti-snag draft tubes and a fully integrated neck collar.

The Helium 600 is a sleeping bag that excels in versatility, packability, and, most crucially, exceptional warmth. Well-suited for cold-weather pursuits in early spring or late autumn at altitude, or winter use during lower altitudes, it embodies a perfect blend of innovation and functionality for a comfortable night's sleep in challenging conditions.

Technical details

Ideal use:

Backpacking, Trekking


Outer: Recycled Helium 20D, 100% polyamide

Inner: Recycled Supersoft 20D, 100% polyamide

Insulation: 700 FP Pure duck down

PFC free DWR

Key features:

Storage cube & waterproof roll-top stuff sack supplied

4 Baffle anatomically shaped & off-set foot-box

Integrated neck collar with Lode Lock closure

Slanted box-wall baffles throughout

5 Baffle anatomically shaped hood

Comfortable & thermal efficient

Full length Gemini zip baffle

Mid-level side seams

Highly breathable



Tech specs:

Comfort: -5°C

Comfort limit: -11°C

Extreme: -31°C

Length: Regular

Pack size: 25 x 23 x 20cm

Weight: 1030g



Insulation Type
Outer fabric composition
100% Polyamide


Fill power (cuin)
Sleeping bag features
Foot box, Hood, Water resistant coating


Weight (g)
Packaging dimensions (cm)
25 x 23 x 20

Other features

Mountain Equipment
Ideal For
Backpacking, Camping, Hiking, Mountaineering, Trekking
Product Code
Reviews (5)

User Reviews (5)

Our Planet
Our Planet logo
This product has features that impact at least three of our environmental areas.


This product is made from materials such as recycled, organic, alternative (fast renewable raw materials), a combination of these and/or does not intentionally contain any chemicals.
At least 50% Recycled Synthetics


This product as a whole or the individual materials within this product have the following certification(s). These are voluntary guidelines used to demonstrate their commitment to good environmental, social, ethical, and food safety practices.
Down Codex
Fair Wear
Responsible Down


This product complies with the following feature(s) aimed at eliminating waste and maximising resource reuse.
Minimum of 4 Years Guarantee

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