Synthetic Sleeping Bags

(133)
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    50%
    Stoic
    TorsboSt. II Pongee Blanket Blanket
    Original price £85.95 Price £42.98
    4,8 (8)
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    30%
    Stoic
    Kid's RovenSt. Sleeping Bag Kids' sleeping bag
    Original price £59.95 Price £41.97
    4,7 (9)
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    Grüezi Bag
    Schlafsackwarmer Youth Travel sleeping bag
    Price £49.95
    5,0 (1)
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    Marmot
    Nanowave 45 Synthetic sleeping bag
    Price from £104.45
    5,0 (3)
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    Grüezi Bag
    Cloud Decke Synthetic sleeping bag
    Price £119.95
    4,7 (3)
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    Rab
    Solar Eco 2 Synthetic sleeping bag
    Price from £175.70
    5,0 (1)
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    Grüezi Bag
    Cloud Cotton Comfort Synthetic sleeping bag
    Price £139.95
    4,5 (2)
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    Grüezi Bag
    Biopod Wolle Murmeltier Comfort Synthetic sleeping bag
    Price £269.95
    4,7 (3)
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    Grüezi Bag
    Biopod Wolle Survival Synthetic sleeping bag
    Price £299.95
    5,0 (1)
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    30%
    Deuter
    Women's Orbit -5° SL Synthetic sleeping bag
    Original price £111.95 Price £78.37
    5,0 (1)
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    30%
    Deuter
    Orbit SQ -5° Synthetic sleeping bag
    Original price £128.95 Price £90.27
    4,6 (7)
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    Mountain Equipment
    Klimatic III Synthetic sleeping bag
    Price £163.35
    5,0 (1)
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    Mammut
    Women's Comfort Fiber Bag -7C Synthetic sleeping bag
    Price £151.95
    5,0 (2)
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    Snow Peak
    Sleeping Bag Ofuton Wide LX Synthetic sleeping bag
    Price £256.45
    5,0 (1)
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    Vaude
    Sioux 1000 II SYN Synthetic sleeping bag
    Original price £119.95 Price from £101.96
    5,0 (2)
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    50%
    Stoic
    TorsboSt. II Blanket Blanket
    Original price £85.95 Price £42.98
    4,0 (5)
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    Carinthia
    Defence 1 Top Synthetic sleeping bag
    Price £138.95
    4,8 (5)
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    Carinthia
    Eagle Synthetic sleeping bag
    Price £119.95
    5,0 (1)
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    Carinthia
    XP Top Synthetic sleeping bag
    Price £184.95
    5,0 (1)
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    Carinthia
    G 490X Synthetic sleeping bag
    Price £377.95
    5,0 (3)
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    Carinthia
    Tropen Synthetic sleeping bag
    Price from £145.95
    4,9 (8)
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    25%
    Nemo
    Women's Forte Endless Promise 20 Synthetic sleeping bag
    Original price £219.95 Price from £164.96
    4,0 (1)
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    Robens
    Snowfall I +2°C Synthetic sleeping bag
    Price £94.95
    5,0 (1)
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    15%
    Vaude
    Navajo 900 II SYN Synthetic sleeping bag
    Original price £119.95 Price £101.96
    5,0 (1)
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    20%
    Mammut
    Women's Perform Fiber Bag -10C Synthetic sleeping bag
    Original price £219.95 Price £175.96
    4,5 (2)
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    25%
    Sierra Designs
    Frontcountry Bed 20 Synthetic sleeping bag
    Original price £227.95 Price from £170.96
    5,0 (2)
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    15%
    Sea to Summit
    Boab -1°C Synthetic Sleeping Bag Synthetic sleeping bag
    Original price £119.95 Price from £101.96
    5,0 (1)
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    25%
    Mountain Equipment
    Klimatic II Synthetic sleeping bag
    Original price £154.95 Price £116.21
    4,5 (2)
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    25%
    Ajungilak
    Aputi Fiber Bag -7C Synthetic sleeping bag
    Original price £214.95 Price £161.21
    4,3 (3)
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    40%
    Stoic
    RovenSt. 5°C Synthetic sleeping bag
    Original price £145.95 Price from £87.57
    4,2 (5)
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    Mountain Equipment
    Lunar II Synthetic sleeping bag
    Price £122.50
    4,3 (4)
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    25%
    Big Agnes
    Anthracite 30 Synthetic sleeping bag
    Original price £149.95 Price £112.46
    5,0 (1)
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    25%
    Deuter
    Dreamlite Synthetic sleeping bag
    Original price £81.95 Price £61.46
    4,8 (8)
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    25%
    Cocoon
    Mountain Wanderer Synthetic sleeping bag
    Original price £85.95 Price £64.46
    5,0 (2)
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    25%
    Deuter
    Orbit -5° Synthetic sleeping bag
    Original price £111.95 Price £83.96
    5,0 (4)
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    10%
    Mountain Equipment
    Lunar I Synthetic sleeping bag
    Original price £102.95 Price £92.66
    4,3 (3)
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    Mammut
    Tyin MTI 5-Season Synthetic sleeping bag
    Price from £265.95
    4,0 (2)
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    Fjällräven
    Abisko Two Seasons Synthetic sleeping bag
    Price £163.35
    4,0 (2)
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    25%
    Marmot
    Kid's Trestles Elite Eco 30 Synthetic sleeping bag
    Original price £139.95 Price £104.96
    4,0 (1)
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    40%
    Vaude
    Maderno 600 Rect Synthetic sleeping bag
    Original price £85.95 Price £51.57
    4,0 (1)
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    25%
    Salewa
    Rozes Light Synthetic sleeping bag
    Original price £219.95 Price £164.96
    3,5 (2)
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    25%
    Mountain Equipment
    Lunar III Synthetic sleeping bag
    Original price £136.95 Price from £102.71
    4,0 (2)
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    25%
    Vaude
    Selun 800 SYN Synthetic sleeping bag
    Original price £188.95 Price £141.71
    4,0 (1)
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    15%
    Sea to Summit
    Women's Hamelin -9°C Synthetic Sleeping Bag Synthetic sleeping bag
    Original price £188.95 Price £160.61
    3,0 (1)
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    20%
    Deuter
    Kid's Overnite Kids' sleeping bag
    Original price £102.95 Price £82.36
    3,0 (2)
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    25%
    Salewa
    Micro II 850 Quattro Synthetic sleeping bag
    Original price £109.95 Price £82.46
    3,0 (3)
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    Grüezi Bag
    Schlafsackwarmer Travel sleeping bag
    Price £59.95
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    Grüezi Bag
    Biopod Wolle Zero XL Synthetic sleeping bag
    Price £269.95
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    25%
    Ajungilak
    Women's Aputi Fiber Bag -10C Synthetic sleeping bag
    Original price £214.95 Price £161.21
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    Grüezi Bag
    Cloud Mumie Synthetic sleeping bag
    Price £119.95
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    Rab
    Women's Solar Eco 2 Synthetic sleeping bag
    Price £175.70
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    40%
    Stoic
    RovenSt. +11°C Sleeping Bag Synthetic sleeping bag
    Original price £111.95 Price from £67.17
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    Rab
    Solar Eco 4 Synthetic sleeping bag
    Price £213.70
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    The North Face
    Cat's Meow Eco Synthetic sleeping bag
    Price £170.95
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    Mountain Equipment
    Women's Klimatic II Synthetic sleeping bag
    Price from £147.20
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    Mountain Equipment
    Women's Klimatic III Synthetic sleeping bag
    Price from £163.35
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    Grüezi Bag
    Biopod Wolle Camp Cotton Comfort Synthetic sleeping bag
    Price £244.95
    (0)
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    Deuter
    Orbit SQ -5°C Synthetic sleeping bag
    Price £128.95
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    Exped
    Megasleep Duo Blanket
    Price £257.95
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    Exped
    Deepsleep -5° C Synthetic sleeping bag
    Price £128.95
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    Mammut
    Women's Comfort Fiber Bag -18C Synthetic sleeping bag
    Price £213.70
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    Deuter
    Exosphere 0°C Synthetic sleeping bag
    Price £154.80
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    to 15%
    Exped
    Dreamwalker Synthetic sleeping bag
    Original price £128.95 Price from £109.61
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    Sea to Summit
    Hamelin -1°C Synthetic Sleeping Bag Synthetic sleeping bag
    Price £171.95
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    10%
    Rab
    Solar Eco 1 Synthetic sleeping bag
    Original price £164.95 Price £148.46
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    Deuter
    Women's Exosphere SL -11°C Synthetic sleeping bag
    Price £195.65
    (0)
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    Snugpak
    Softie 6 Kerstrel Synthetic sleeping bag
    Price £154.80
    (0)
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    Deuter
    Exosphere EL 0°C Synthetic sleeping bag
    Price £163.35
    (0)
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    Deuter
    Orbit SQ +6°C Synthetic sleeping bag
    Price £106.35
    (0)
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    New
    Mammut
    Women's Protect Fiber Bag -21°C Synthetic sleeping bag
    Price £356.20
    (0)
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    Deuter
    Women's Orbit SL +5°C Synthetic sleeping bag
    Price £90.20
    (0)
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    Deuter
    Exosphere -11°C Synthetic sleeping bag
    Price £195.65
    (0)
  • Check out our Buyers Guide!
    Looking for synthetic sleeping bags? Check out our Buyers Guide!

Down is not your only choice: synthetic sleeping bags

Synthetic Sleeping Bags

If you don’t want to carry a bivvy bag with you or you'll travel in areas with rapidly changing weather conditions, then it's better to opt for a synthetic rather than a down sleeping bag. Keep on reading to learn more about what to consider when buying a synthetic sleeping bag.

What kind of fill is found in a synthetic sleeping bag?

Synthetic fibre can be thought of as a giant wad of cotton. The lining is made up of tiny micro-threads that twist thousands of times to insulate warm air in the spaces between them. If the fibres themselves also trap air to improve heat retention, then these are called hollow fibres.
Synthetic fibres attempt to imitate down, which has certain advantages and disadvantages compared to the natural fibres. A synthetic sleeping bag can keep you toasty even if it gets wet, and it won't clump together. Synthetic fibres can’t loose any fill because they form a continuous filament. However they’re nowhere near as warm as down (when comparing two sleeping bags that weigh the same) and they're less vapour permeable.
Another thing to keep in mind is the price: if you want a sleeping bag for all occasions and you’re not concerned about weight or pack size, then get a synthetic one!

Where and when to use synthetic sleeping bags

Synthetic sleeping bags are mainly used in changeable weather conditions, e.g., in humid tropical climates or in cold, damp weather. You can also use them if you’d like to spend the night outdoors without a bivvy bag. In addition, even if the synthetic sleeping bag gets wet, it’ll still keep you toasty warm. Down tends to clump together when wet and therefore loses its ability to insulate.

The construction, types and features of synthetic sleeping bags

There are synthetic sleeping bags that come as a blanket and some as a mummy style. The former provides more comfort, while the latter provides more heat retention. In addition to connectable models, there are also women-specific sleeping bags on the market that feature a soft lining and have more insulation at the feet. Some other features to look out for are a draught collar, which is super practical in cooler temperatures and a two-way zip that provides more ventilation. Synthetic sleeping bags with L-shaped or U-shaped zips are even more versatile.
Of course, having only a synthetic sleeping bag doesn't guarantee a comfortable night's sleep. You'll also need to find a good sleeping mat. This combination will help you recharge your batteries for the next day of adventuring.

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