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SkyeHigh 900 Long [2017] down sleeping bag

4 season extra long down sleeping bag for taller people. -11ºC 650 IDFB fill power down sleeping bag weighing less than 1600 g

Skyehigh Down Sleeping bag long
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  • - Skyehigh Down Sleeping bag long
  • - Skyehigh 900 Long Down sleeping bag
1. Colour

Colour swatches are not always representative of the actual product. Please see product photographs for a more accurate impression.


2. Zip

Most right-handers prefer left zip bags as it's easier to reach across your body to your left side to use the zip when lying on your back. The opposite is true if you are left-handed.

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This product has been archived and is no longer available for purchase.

High fill power down in a comfortably spacious design makes our SkyeHighs our most versatile range of sleeping bags. Certified by the RDS to ensure the SH900 continues to set the standard high. 

SkyeHigh Long is for our taller customers, suitable for heights up to 205 cm. This bag has 900 g of 650 fill power 90/10 down to keep you warm and the bag light. 4 season campers expect to face a range of extremes and hostile temperatures. Whether snowholing in the Cairngorms, camping out on a windswept shoreline or snugged up in a alpine hut this is the bag to keep you warm.

The excellent compressibility of down means it squishes down small to fit in your rucksack. The box wall baffle construction and trapezoid side baffles eliminate potential heat loss and prevents down migrating from front to back.

The down we use is certified RDS (Responsible Down Standard). This mark indicates that the down in this product does not come from birds that have been live-plucked or force-fed, and that their welfare has been protected from the time they were hatchlings to when they are slaughtered. That’s good to know.

Key features
  • 3 Year Alpine Bond
  • Extended length
  • Shaped foot section, adjustable head closure and draft collar
  • Internal pocket for valuables
  • Box-wall baffles
  • RDS certified: All of our down is ethically sourced, not live-plucked and not force fed
  • YKK zips and anti-snag zip guard
  • C6 DWR coating to shed morning drips
More images
  • Box walled down sleeping bag - Cushy box-wall baffles reduce cold spots
  • Down sleeping bag in compression sack - SkyeHigh compresses down to save space in your rucksack
  • Shaped foot section - SkyeHigh has a shaped foot section to reduce compression of the down
  • Sleeping bag with internal pocket  - Internal pocket for storing valuables and keeping your batteries warm during the night
  • Sleeping bag cotton storage bag - SkyeHigh comes with a cotton storage bag and 4-way compression bag
Vital stats
Temperature rating


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*

* 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: 90/10 Chinese duck down; RDS certified
Fill power: IDFB 650
Fill weight: 900 g
Inner: 20D Nylon
Outer: 20D Ripstop Nylon
Construction: Box-wall


Weight: 1460 g
​Internal length: 215 cm
Internal width: 64 cm
Zip length: 170 cm
Compression bag weight: 120 g
Packed size: ⌀ 20 x 34 cm

Fitting guidance

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

Spacious: 5ft11 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: 6ft4 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: 6ft7 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


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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 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.


We offer a range of finance options from 0% to 9.9% starting on orders over £500. Please give us a call on 01773 417007 to apply for finance. Our customer support heros will take your order and talk you through the quick and easy application process.

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.


2 Reviews


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Graham Edwards
Great sleeping bag

I purchased the Skyehigh 900 long in December 2015 as my old down sleeping bag had pretty much given up on me. I spent quite a long time deciding on which bag to go for and eventually settled for this long version as it would give me extra space. I have used it on several occasions, mainly on a weeks long camping trip in the Lakes and have so far been really pleased with the item, its really warm and extra space (I'm 6ft 1) is amazing. I would highly recommend this sleeping bag to anyone who wants a that added space in their sleeping bag.

V Hot!

I purchased this large Skyehigh XL about a month ago and used it for the first time this weekend. Firstly, it is a very warm bag, and so i ended sleeping half in and half out! I am 6ft 1, and 15.5 stone, so this bag fitted me really well. The bag is well made and I did not see any manufacturing issues i.e. loose threads. It 'lofts' very quickly and then pack downs very easily. This is the first down bag i have owned so i have no reference point except for my old synthetic Vango, which this beats hands down. Nice work Alpkit!