Mountain Equipment Helium 400 -5°C Regular Down Sleeping Bag
£300.00 £270.00

Efficiently sized, supremely comfortable and low in weight each Mountain Equipment Helium bag offers outstanding all-round performance for backpackers, cycle-tourers and trekkers. These bags don’t skimp on features and will keep you warm and comfortable whether on a summer road-trip or extended trek

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An incredibly light, versatile and packable sleeping bag that's well suited to backpacking and cycle touring

It will still happily cope with cooler nights during the Spring and end of Summer / early Autumn months

Colour: Majolica Blue

Length: Regular

Zip Side: Left (as you lie in the bag)

Outer Fabric: 100% recycled HELIUM 20D,  FC free DWR

Lining: 100% recycled Supersoft 20D, FC free DWR

Insulation: 90-10 Pure Duck Down 700, DOWN CODEX®

Weight of Insulation: 403g, size regular

Fill Power: 700, minimum

EN 13537 / ISO23537 LaboratoryTemperature Ratings:

Comfort: 0°C

Comfort: -6°C

Extreme: -24°C

Mountain Equipment Good Nights Sleep: -5°C

Total Weight of Bag: 820g, 1lb 12.9oz

Packed Dimensions: 24cm x 21cm x 20cm


100% recycled HELIUM 20D outer shell is very light and highly breathable with FC free DWR

403g of 90-10 Pure Duck Down with a minimum fill power of 700

Alpine fit maximises thermal efficiency

Slanted box-wall baffles throughout

Mid-level side seams

5 baffle anatomically shaped hood

4 baffle anatomically shaped and offset foot-box

Full length Gemini zip baffle with 140cm zip and integrated neck collar with Lode Lock closure

Supplied with waterproof roll-top stuff-sack, colour shadow grey:

Air-release eyelet for easier compression

Fully taped and waterproof constructionAir-release eyelet for easier compression

Supplied with a storage cube:

210D ripstop Nylon top and base with mesh panels

YKK® reverse coil zip entry

Cube design is sized per bag and easier to store

Grab handle for ease of carrying

Watch:  Helium Sleeping Bag Range & Info

Mountain Equipment Good Nights Sleep:

So confident are M.E that their sleeping bags will keep your warm and comfortable regarding your choice of bag

In addition to the EN13537/ISO23537 laboratory ratings they quote, every Mountain Equipment sleeping bag comes with a separate ‘A Good Night’s Sleep Guaranteed’ temperature rating

Helium Fabrics:

Are exceptionally light, compressible and soft

Their densely woven construction ensures the highest levels of down-proofing and wind resistance

DOWN CODEX® is their multi-award-winning certification scheme that considers the environmental, ethical and animal welfare matters relating to M.E'sdown supply chains

It is grounded in comprehensive and transparent auditing that ensures traceability and quality

Down 700

Down is the finest insulator that Mountain Equipment have

Its warmth to weight ratio, compressibility, long lifespan, and softness are yet to be matched by manmade insulations

100% Recycled Content:

M.E define a product as containing 100% recycled content when at least one of a product’s major fabrics and fill (if applicable) contains 100% recycled content

Components e.g. zips and minor trim e.g. interlings are excluded

All recycled material must be certified as such according to the Global Recycling Standard (GRS)

Fluorocarbon Free

Products are defined as being FC-Free when no fluorocarbons have been used in the manufacturing process of the product’s major fabrics

Components e.g. zips and minor trim e.g. interlings are excluded.

Unfortunately, because FCs are now so widely dispersed in the environment it is impossible to eradicate traces of FCs entirely and some level of contamination cannot be avoided

Fair Wear

As a member of Fair Wear, Mountain Equipment is committed to implementing the highest standards of working conditions

Free UK Delivery On All Orders
Orders received BEFORE 1pm on days we are open are usually dispatched the same day with Royal Mail using a 2nd Class delivery service (normally 2-3 working days).
As we are closed on a Tuesday, items ordered after 1pm on the proceeding Monday will not be posted until Wednesday afternoon

Orders over £20 will be sent Tracked & Signed For.
We will use Royal Mail or Parcelforce where applicable
Used depending on the size/weight of your order and if so we will try to inform you before dispatch.

Next Day UK Delivery  £10.00
Orders placed BEFORE 1pm on days we are open will be dispatched the same day, usually by Royal Mail or occasionally by Courier and will require a signature. Any Next Day orders received after this time will be dispatched the following working day. Please note any orders placed AFTER 1pm on Fridays will be dispatched on the following Monday (excluding Bank Holidays).

Highlands of Scotland, UK Islands & Countries outside of the UK
The above does not apply to these areas
We do not deliver to countries not in the United Kingdom

If you would like any more information on your delivery
please contact us

As a busy independent retailer, very occassionally we may not have the ordered item in stock. In this case we will inform you of the situation so you can decide how we proceed to your satisfactio