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PipeDream 400down sleeping bag

Ultra lightweight 2-3 season goosedown sleeping bag. Box wall construction with a -6ºC sleep limit and weighing just 840 g

PipeDream 400 down sleeping bag

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This years PipeDream 400 has a box-wall construction to give a lightweight fine tuned sleeping bag with the adventurous traveller in mind.

Optimised with 750 fill power down to get the most warmth, yet weighing only 840 g. With no unnecessary features this specialist bag uses 400 g of 90/10 goosedown and is suited to 2-3 season use or as a liner bag for winter trips.

The bag has a DWR coating so the odd drip of condensation or early morning dew won't ruin your bag’s insulation and the dark colour scheme absorbs heat from the sun - so if your down is unlucky enough to get wet, it will dry quicker.

Supplied with cotton storage bag and lightweight stuff bag.

Key features
  • C6 DWR coating
  • Box-wall construction
  • All of our down is ethically sourced, not live-plucked and not force-fed
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Vital stats
Temperature ratings


AK Sleep Limit
The majority of our customers will find this to be the tipping point between a comfortable and restless nights sleep.

Thermal test results from the lab ABOUT OUR RESULTS
TOG Leeds Comfort EN13537 Comfort EN13537 Limit EN13537 Extreme*
11 -13˚C -4.2˚C -10.8˚C -29.5˚C

* The Extreme rating is the temperature at which the average woman can remain for six hours without risk of DEATH from hypothermia - but can still sustain cold injuries - under EN13537 conditions. We do not recommend using this bag in these weather conditions, or making your purchasing decision based on this value.


Fill quality: 90/10 Chinese white goose down
Fill weight: 400 g
Fill power: 750 IDFB
Inner: 20D Polyester, 45 g/m2
Outer: 20D Polyester, 45 g/m2
Construction: Box-wall


Weight: 840 g
​Internal length: 185 cm
​Internal width: 64 cm
Zip length: 160 cm
Stuff bag weight: 30 g
Stuff bag size: 62 x 17 cm (Circumference x height), can be compressed down to: 64 x 13 cm (compression straps not included)

Fitting guidance

How will you fit? Our guide is based on the user wearing thin base layers.

Spacious: 5ft3 tall or you have a shoulder circumference of around 100 cm. The bag will be perfectly useable but you will have space within the bag. For this reason it will not be as thermally efficient as an optimum fit but it will be comfortable and you will easily be able to wear extra layers.

Optimum: 5ft11 tall or you have a shoulder circumference of around 124 cm. At this size you are the ideal candidate for this bag. You should be able to easily arrange yourself in the bag, and still have the space to wear an additional down jacket if necessary.

Tight: 6ft1 tall or you have a shoulder circumference of around 128 cm. At this size you will start to compress the down and reduce the thermal efficiency of the bag, especially in the foot section and have limited movement around your shoulders when the zip is full closed. You should still be able to take your socks off, but might struggle to take off a top layer without undoing the zip.

Origin: China

Right Notify

Same day despatch

All orders received before 2pm despatched same day.

Free UK Shipping on all orders

Free 2 day delivery to UK addresses is included in all orders so the price you see is the price you pay. Upgrade to next day 1pm at the checkout.

Free No hassle 123 day returns

Buy with confidence and if you are not happy, change your mind or want a swap for any reason then return it for free and we will exchange or refund no question. The price you see is the price you pay. Just return the kit as you receive it - in its original condition, unused, unworn, with original packaging and fit for resale.

Alpine Bond

If one of our products does not meet your expectations upon delivery or, if it does not live up to the demands placed upon it, please return it within 3 years of purchase for repair, replacement or refund. If the problem is our fault then we will do this to your satisfaction if it’s your fault then we will help out the best we can.
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1 Reviews


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Cracking Allrounder

I've had allot of bags over the years but the PipeDream is by far the best.

The warmth provided for the weight and bulk of the sack is brilliant. It was over £100 cheaper than sacks recommended in stores/forums, its weight, great build quality and space inside (I'm 6ft) just make it the perfect choice for me.

I've used this bag down to -8 and was pretty comfortable with a good mat underneath. I know its sold as a 2-3 season but I carry a down quilt in winter for added warmth if needed.


PipeDream 400 Review

Fiona Outdoors review in Run Ultra

It is hard to beat this bag for price and good design. It is lightweight and warm and has a welcome extra feature of DWR treatment.


Run Ultra December 2015 - Fiona Outdoors