Down Sleeping Bags
Why choose a down sleeping bag?
A down sleeping bag is designed for hikers, trekkers and mountaineers looking for warm, lightweight and packable kit. Thanks to its excellent warmth-to-weight ratio, it fits easily into a rucksack and is particularly well suited to treks and mountain bivvying. To compare it with other types of insulation, also take a look at our selection of sleeping bags.
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Recommended price
£263.91
-31%
£182.07
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Recommended price
£395.91
-20%
£316.71
The Spark -1°C/30°F Grey Yellow sleeping bag from Sea To Summit offers lightness, warmth and water resistance for cool nights outdoors.
- Regular (<185)
- Long (<198)
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Recommended price
£307.91
-30%
£215.51
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-
Recommended price
£351.91
-30%
£246.31
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Recommended price
£307.91
-30%
£215.51
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-
Recommended price
£316.71
-10%
From £284.15
The Nemo Disco Men's 15 sleeping bag in Ombre Blue combines warm down insulation with an elegant design, ensuring a comfortable night's sleep outdoors.
- Regular (183)
- Long (198)
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Recommended price
£307.91
-28%
From £219.91
- Long Left Zip
INCLUDED
DAY RETURNS
Fixed costs
-
Recommended price
£153.91
-20%
£123.11
- Droitier
- Gaucher
-
Recommended price
£483.91
-25%
From £362.47
The Sea To Summit Spark -9°C/15°F is a lightweight, packable sleeping bag with optimal thermal insulation, water resistance, and a body-hugging mummy shape for extreme conditions.
- Regular (<185)
- Long (<198)
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Recommended price
£290.31
-19%
From £233.11
The Sea To Summit Spark 7°C/45°F is a lightweight, compressible, mummy shape sleeping bag with down fill and water-repellent coating, ideal for summer or high-altitude hiking.
- Long (<198)
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Recommended price
£360.71
-19%
From £290.31
- Regular Left Zip
- Long Left Zip
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Recommended price
£334.31
-25%
From £250.71
- Regular Left Zip (Droitier)
- Long Left Zip (Droitier)
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Recommended price
£369.51
-25%
From £277.11
- Regular Left Zip
- Long Left Zip
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Recommended price
£343.11
-20%
From £274.47
- Regular Left Zip
- Long Left Zip
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Recommended price
£439.91
-20%
From £351.91
The Nemo Coda 10/20 Goodnight Grey Birch Bud sleeping bag delivers outstanding thermal insulation for warm, comfortable nights outdoors.
- Regular (183)
- Long (198)
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Recommended price
£404.71
-20%
From £323.75
The Nemo Coda 25/35 Titanium Spicy Orange sleeping bag delivers warmth, comfort, and optimal protection for your nights under the stars.
- Regular (183)
- Long (198)
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Recommended price
£299.11
-14%
From £255.11
The Pajak Core 350 Navy sleeping bag delivers outstanding comfort for mid-season nights.
- Regular (180)
- Long (205)
-
Recommended price
£431.11
-15%
From £365.11
The Core 750 Navy Blue sleeping bag by Pajak features a high-quality Polish white duck down with a fill power of 700 Cuin, ensuring optimal thermal insulation.
- Regular (180)
- Long (205)
-
Recommended price
£281.51
-10%
From £253.35
- Regular (183)
- Long (198)
-
Recommended price
£189.11
-30%
£131.91
- Droitier
- Gaucher
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Advantages of a down and feather sleeping bag
The main benefit of natural down is its ability to trap a large amount of air while keeping weight low. For a comparable level of warmth, a down bag is generally lighter and less bulky than a synthetic model.
It is therefore a relevant choice when every gram counts:
- multi-day hiking
- long-distance trekking
- mountaineering
- bikepacking
- lightweight bivvying
Which down sleeping bag should you choose?
To select the right model, compare the comfort temperature, total weight, packed size and bag dimensions as a priority.
| Your requirement | The model to go for |
| Summer bivvy | A lightweight bag with a comfort rating suited to mild nights |
| Trekking and multi-day hiking | A compact model with a good warmth-to-weight ratio |
| Cool nights at altitude | A mummy sleeping bag with a hood and enhanced insulation |
| Winter bivvy | An extreme-cold model with generous insulation and a construction designed to limit heat loss |
| Ultralight use | A bag with high fill power and a small packed volume |
Goose down or duck down?
Both goose down and duck down can deliver excellent performance. Goose down often achieves high fill powers, but the actual quality mainly depends on the loft level, the amount of insulation and the bag’s construction.
Duck down is often a more accessible option, without necessarily being less efficient. You should therefore not choose solely according to the bird it comes from.
Fill power: a key criterion to compare
Fill power, expressed in cuin, indicates the ability of the down to loft and trap air. The higher this value, the better the down can deliver a strong warmth-to-weight ratio and a reduced packed volume.
However, this figure alone is not enough to determine how warm the bag will be. The amount of down, its distribution, the shape of the sleeping bag and the presence of a hood or thermal collar also matter.
An ideal material for cold-weather wild camping
Down sleeping bags are particularly useful for cold nights and bivvying at altitude. Their effectiveness does, however, depend on the model’s comfort temperature and the sleeping mat used.
Even a very high-performance bag will not compensate for a mat with insufficient insulation. For a coherent sleep system, always pair the two items according to the temperatures expected.
Complete your sleep system
To improve hygiene, comfort and organisation at your camp, you can complete your kit with sleeping bag liners and camping pillows.
FAQ on down sleeping bags
What is the difference between a down bag and a synthetic bag?
Down is generally lighter and more compressible for a comparable warmth rating. Synthetic insulation copes better with moisture and often requires less careful maintenance.
What is the best down sleeping bag?
The best model is the one whose comfort temperature, weight, packed volume and size match your needs.
What is the difference between goose down and duck down?
Goose down often reaches a higher fill power, but high-quality duck down can deliver excellent performance. Above all, compare the cuin rating, the amount of insulation and the total weight.
What does 90/10 mean on a sleeping bag?
This indication refers to the proportion of down and feathers. A 90/10 ratio means the fill contains 90% down and 10% feathers.
How do you wash a down sleeping bag?
Use a detergent suitable for down, select a gentle cycle and follow the manufacturer’s instructions. Drying must be thorough to prevent clumping and loss of loft. Read our full article on how to wash a sleeping bag for a step-by-step guide.