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  • -10°C
    Basecamp -9C Down Sleeping Bag Basecamp -9C Down Sleeping Bag
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    Sea to Summit

    Basecamp -9C Down Sleeping Bag

    Weighs
    1837g (Regular)
    Weighs:
    1837g (Regular)
    Comfort Limit:
    -10°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    820g (based on regular size)
    Fill Power:
    650
    Down Treatment:
    Hydrophobic
    Zip Length:
    Full Length

    The Sea to Summit Basecamp -9C Down Sleeping Bag is perfect for cold-weather vehicle camping. It's spacious and comfortable, with excellent insulation even in damp conditions. The innovative Free Flow Zip System allows for multiple configurations. Se…

    From: £354.99
    RRP: £419.99 | Save: £65.00
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  • -9°C
    Sea to Summit Boab -9C/15F Synthetic Sleeping Bag Sea to Summit Boab -9C/15F Synthetic Sleeping Bag
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    Sea to Summit

    Boab -9C/15F Synthetic Sleeping Bag

    Weighs
    1854g (Regular)
    Weighs:
    1854g (Regular)
    Comfort Limit:
    -9°C
    Type:
    Mummy
    Insulation Type:
    Synthetic
    Zip Length:
    Full Length
    Zip Position:
    Left Zip

    The Boab balances comfort with conscious design. Sea to Summit says:  The Boab is a great choice for campers and vehicle-based adventurers looking for a roomy, comfort-oriented sleeping bag. A #5 zipper continues through the footbox, and the dou…

    From: £134.99
    RRP: £149.99 | Save: £15.00
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  • -9°C
    Womens Ascent -9C Down Sleeping Bag Womens Ascent -9C Down Sleeping Bag
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    Sea to Summit

    Womens Ascent -9C Down Sleeping Bag

    Weighs
    1242g (Regular)
    Weighs:
    1242g (Regular)
    Comfort Limit:
    -9°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    797g (based on regular size)
    Fill Power:
    750
    Down Treatment:
    Hydrophobic
    Zip Length:
    Full Length
    Zip Position:
    Right Zip

    The Sea to Summit Ascent -9C is a premium down sleeping bag for cold-weather adventures. It provides warmth even in freezing temperatures. The bag is lightweight and features a relaxed mummy shape for comfort. The free-flow zipper system allows for..…

    From: £409.99
    RRP: £484.99 | Save: £75.00
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  • °C
    Alpine -29C/-20F Down Sleeping Bag Alpine -29C/-20F Down Sleeping Bag
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    Sea to Summit

    Alpine -29C/-20F Down Sleeping Bag

    Weighs
    1466g (Regular)
    Weighs:
    1466g (Regular)
    Comfort Limit:
    -28°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    1000g
    Fill Power:
    850+
    Down Treatment:
    Hydrophobic
    Zip Length:
    3/4 Length
    Zip Position:
    Left and Right

    If you plan to brave arctic-level temperatures or high-altitude adventures, this bag delivers reliable warmth, thoughtful design, and exceptional comfort. Sea to Summit says:  The Alpine sleeping bag features the highest quality Ultra-Dry down a…

    £764.99
    RRP: £899.99 | Save: £135.00
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  • -2°C
    Sea to Summit Ascent -1C Down Sleeping Bag Sea to Summit Ascent -1C Down Sleeping Bag
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    Sea to Summit

    Ascent -1C Down Sleeping Bag

    Weighs
    777g (Regular)
    Weighs:
    777g (Regular)
    Comfort Limit:
    -2°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    300g (based on regular size)
    Fill Power:
    750
    Down Treatment:
    Hydrophobic
    Zip Length:
    Full Length
    Zip Position:
    Left Zip

    The Sea to Summit Ascent is a lightweight sleeping bag ideal for three seasons. Its 750+ fill power of responsibly sourced duck down provides warmth and is treated to maintain performance in damp conditions. Sea to Summit says:  The Ascent Slee…

    From: £319.99
    RRP: £374.99 | Save: £55.00
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  • -1°C
    Sea to Summit Boab -1C/30F Synthetic Sleeping Bag Sea to Summit Boab -1C/30F Synthetic Sleeping Bag
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    Sea to Summit

    Boab -1C/30F Synthetic Sleeping Bag

    Weighs
    1374g (Regular)
    Weighs:
    1374g (Regular)
    Comfort Limit:
    -1°C
    Type:
    Mummy
    Insulation Type:
    Synthetic
    Zip Length:
    Full Length
    Zip Position:
    Right Zip

    The Boab balances comfort with conscious design. Sea to Summit says:  The Boab is a great choice for campers and vehicle-based adventurers looking for a roomy, comfort-oriented sleeping bag. A #5 zipper continues through the footbox, and the dou…

    From: £119.99
    RRP: £129.99 | Save: £10.00
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  • -1°C
    Sea to Summit Hamelin -1C/30F Synthetic Sleeping Bag Sea to Summit Hamelin -1C/30F Synthetic Sleeping Bag
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    Sea to Summit

    Hamelin -1C/30F Synthetic Sleeping Bag

    Weighs
    1189g (Regular)
    Weighs:
    1189g (Regular)
    Comfort Limit:
    -1°C
    Type:
    Mummy
    Insulation Type:
    Synthetic
    Zip Length:
    Full Length
    Zip Position:
    Right Zip

    Versatile, roomy, and reliably warm. Sea to Summit says:  A backpack-capable sleeping bag with a higher level of comfort than traditional mummy bags. For a few extra grams and larger packed size, Hamelin brings the benefits of synthetic insulati…

    From: £154.99
    RRP: £169.99 | Save: £15.00
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  • -1°C
    Sea to Summit Hamelin -9C/15F Synthetic Sleeping Bag Sea to Summit Hamelin -9C/15F Synthetic Sleeping Bag
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    Sea to Summit

    Hamelin -9C/15F Synthetic Sleeping Bag

    Weighs
    1626g (Regular)
    Weighs:
    1626g (Regular)
    Comfort Limit:
    -9°C
    Type:
    Mummy
    Insulation Type:
    Synthetic
    Zip Length:
    Full Length
    Zip Position:
    Right Zip

    Versatile, roomy, and reliably warm. Sea to Summit says:  A backpack-capable sleeping bag with a higher level of comfort than traditional mummy bags. For a few extra grams and larger packed size, Hamelin brings the benefits of synthetic insulati…

    From: £169.99
    RRP: £189.99 | Save: £20.00
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  • -18°C
    Sea to Summit Spark -18C/0F Down Sleeping Bag Sea to Summit Spark -18C/0F Down Sleeping Bag
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    Sea to Summit

    Spark -18C/0F Down Sleeping Bag

    Weighs
    1118g (Regular)
    Weighs:
    1118g (Regular)
    Comfort Limit:
    -18°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    840g (based on regular size)
    Fill Power:
    850
    Down Treatment:
    Hydrophobic
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip

    Sea to Summit have redesigned its renowned Spark sleeping bag line, featuring high-quality materials and ethically sourced down. Now featuring waterproof material at the hood and foot box for increased protection from condensation. Sea to Summit...

    From: £544.99
    RRP: £644.99 | Save: £100.00
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  • -1°C
    Sea to Summit Spark -1C/30F Down Sleeping Bag Sea to Summit Spark -1C/30F Down Sleeping Bag
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    Sea to Summit

    Spark -1C/30F Down Sleeping Bag

    Weighs
    498g (Regular)
    Weighs:
    498g (Regular)
    Comfort Limit:
    -1°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    265g (based on regular size)
    Fill Power:
    850
    Down Treatment:
    Hydrophobic
    Zip Length:
    1/2 Length
    Zip Position:
    Left Zip

    Sea to Summit have redesigned its renowned Spark sleeping bag line, featuring high-quality materials and ethically sourced down. Now featuring waterproof material at the hood and foot box for increased protection from condensation. Sea to Summit...

    From: £339.99
    RRP: £399.99 | Save: £60.00
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  • -8°C
    Spark -9C/15F Down Double Sleeping Bag Spark -9C/15F Down Double Sleeping Bag
    Add to Cart The item has been added

    Sea to Summit

    Spark -9C/15F Down Double Sleeping Bag

    Weighs
    1612g
    Weighs:
    1612g
    Comfort Limit:
    -8°C
    Type:
    Double
    Insulation Type:
    Down
    Fill Weight:
    985g
    Fill Power:
    850
    Down Treatment:
    Hydrophobic
    Zip Length:
    3/4 Length
    Zip Position:
    Both

    Sea to Summit have redesigned its renowned Spark sleeping bag line, featuring high-quality materials and ethically sourced down. Now featuring waterproof material at the hood and foot box for increased protection from condensation. Sea to Summit...

    £764.99
    RRP: £899.99 | Save: £135.00
    Add to Cart The item has been added
  • -8°C
    Spark -9C/15F Down Sleeping Bag Spark -9C/15F Down Sleeping Bag
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    Sea to Summit

    Spark -9C/15F Down Sleeping Bag

    Weighs
    797g (Regular)
    Weighs:
    797g (Regular)
    Comfort Limit:
    -8°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    480g (based on regular size)
    Fill Power:
    850
    Down Treatment:
    Hydrophobic
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip

    Sea to Summit have redesigned its renowned Spark sleeping bag line, featuring high-quality materials and ethically sourced down. Now featuring waterproof material at the hood and foot box for increased protection from condensation. Sea to Summit...

    From: £424.99
    RRP: £499.99 | Save: £75.00
    + Quick Add
  • 7°C
    Spark 7C/45F Down Sleeping Bag Spark 7C/45F Down Sleeping Bag
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    Sea to Summit

    Spark 7C/45F Down Sleeping Bag

    Weighs
    363g (Regular)
    Weighs:
    363g (Regular)
    Comfort Limit:
    7°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    150g (based on regular size)
    Fill Power:
    850
    Down Treatment:
    Hydrophobic
    Zip Length:
    3/4 Length
    Zip Position:
    Left Zip

    Sea to Summit has revived its renowned Spark sleeping bag line, featuring high-quality materials and ethically sourced down. Now featuring waterproof material at the hood and foot box for increased protection from condensation Sea to Summit...

    From: £254.99
    RRP: £299.99 | Save: £45.00
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  • 3°C
    Sea to Summit Spark Pro -1C Down Sleeping Bag Sea to Summit Spark Pro -1C Down Sleeping Bag
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    Sea to Summit

    Spark Pro -1C Down Sleeping Bag

    Weighs
    637g (Regular)
    Weighs:
    637g (Regular)
    Comfort Limit:
    -2°C
    Insulation Type:
    Down
    Fill Weight:
    310g (based on regular size)
    Fill Power:
    950
    Down Treatment:
    Hydrophobic
    Zip Length:
    Full Length
    Zip Position:
    Left Zip
    Type:
    Mummy

    The Spark Pro is an improved version of the renowned Spark series of sleeping bags from Sea to Summit, offering several user-friendly features for outdoor adventures. Sea to Summit says:  The Spark Pro sleeping bag is the perfect option for...

    From: £424.99
    RRP: £499.99 | Save: £75.00
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  • -18°C
    Trek -18C Down Sleeping Bag Trek -18C Down Sleeping Bag
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    Sea to Summit

    Trek -18C Down Sleeping Bag

    Weighs
    1894g (Regular)
    Weighs:
    1894g (Regular)
    Comfort Limit:
    -18°C
    Type:
    Mummy
    Fill Weight:
    1000g (based on regular size)
    Fill Power:
    650
    Down Treatment:
    Hydrophobic
    Zip Length:
    Full Length
    Zip Position:
    Left Zip
    Insulation Type:
    Down

    The Sea to Summit Trek -18°C Down Sleeping Bag is ideal for cold-weather camping. Its comfort rating of -11°C and 650+ Fill Power Duck Down provides excellent insulation and warmth. The semi-rectangular fit and ergonomic design offer ample sp…

    £364.99
    RRP: £429.99 | Save: £65.00
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  • -2°C
    Trek -1C Down Sleeping Bag Trek -1C Down Sleeping Bag
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    Sea to Summit

    Trek -1C Down Sleeping Bag

    Weighs
    1108g (Regular)
    Weighs:
    1108g (Regular)
    Comfort Limit:
    -2°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    380g
    Fill Power:
    650
    Down Treatment:
    Hydrophobic
    Zip Length:
    Full Length
    Zip Position:
    Left Zip

    Sea to Summit's Trek -1C Down Bag provides versatile temperature control and comfort. It features 650+ fill duck down, a Free Flow zipper system for ventilation, and a generous semi-rectangular shape. The bag is not ultralight but offers a good balan…

    From: £279.99
    RRP: £324.99 | Save: £45.00
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  • -9°C
    Trek -9C Down Sleeping Bag Trek -9C Down Sleeping Bag
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    Sea to Summit

    Trek -9C Down Sleeping Bag

    Weighs
    1401g (Regular)
    Weighs:
    1401g (Regular)
    Comfort Limit:
    -9°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    635g (based on regular size)
    Fill Power:
    650
    Down Treatment:
    Hydrophobic
    Zip Length:
    Full Length
    Zip Position:
    Left Zip

    The Sea to Summit Trek -9°C Down Sleeping Bag offers comfort and reliability for camping and overnight adventures. Its semi-rectangular fit provides ample space for a cosy night's sleep. The bag is designed for cold climates and keeps you comfort…

    From: £314.99
    RRP: £369.99 | Save: £55.00
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  • -2°C
    Sea to Summit Womens Ascent -1C Down Sleeping Bag Sea to Summit Womens Ascent -1C Down Sleeping Bag
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    Sea to Summit

    Womens Ascent -1C Down Sleeping Bag

    Weighs
    895g (Regular)
    Weighs:
    895g (Regular)
    Comfort Limit:
    -2°C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    459g (based on regular size)
    Fill Power:
    750
    Down Treatment:
    Hydrophobic
    Zip Length:
    Full Length
    Zip Position:
    Left Zip

    The Sea to Summit Ascent is a lightweight sleeping bag ideal for three seasons. Its 750+ fill power of responsibly sourced duck down provides warmth and is treated to maintain performance in damp conditions. Sea to Summit says:  The Ascent Slee…

    From: £324.99
    RRP: £384.99 | Save: £60.00
    + Quick Add
  • -1°C
    Sea to Summit Womens Hamelin -1C/30F Synthetic Sleeping Bag Sea to Summit Womens Hamelin -1C/30F Synthetic Sleeping Bag
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    Sea to Summit

    Womens Hamelin -1C/30F Synthetic Sleeping Bag

    Weighs
    1479g (Regular)
    Weighs:
    1479g (Regular)
    Comfort Limit:
    -1°C
    Type:
    Mummy
    Insulation Type:
    Synthetic
    Zip Length:
    Full Length
    Zip Position:
    Left Zip

    Versatile, roomy, and reliably warm. Sea to Summit says:  A women’s-specific backpack-capable sleeping bag that provides a higher level of comfort than unisex mummy bags. The higher weight compared to a down bag is balanced by the benefits…

    From: £154.99
    RRP: £169.99 | Save: £15.00
    + Quick Add
  • -9°C
    Sea to Summit Womens Hamelin -9C/15F Synthetic Sleeping Bag Sea to Summit Womens Hamelin -9C/15F Synthetic Sleeping Bag
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    Sea to Summit

    Womens Hamelin -9C/15F Synthetic Sleeping Bag

    Weighs
    1953g (Regular)
    Weighs:
    1953g (Regular)
    Comfort Limit:
    -9°C
    Type:
    Mummy
    Insulation Type:
    Synthetic
    Zip Length:
    Full Length
    Zip Position:
    Right Zip

    Versatile, roomy, and reliably warm. Sea to Summit says:  A backpack-capable sleeping bag with a higher level of comfort than traditional mummy bags. For a few extra grams and larger packed size, Hamelin brings the benefits of synthetic insulati…

    From: £169.99
    RRP: £189.99 | Save: £20.00
    + Quick Add
  • -1°C
    Sea to Summit Womens Spark -1C/30F Down Sleeping Bag Sea to Summit Womens Spark -1C/30F Down Sleeping Bag
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    Sea to Summit

    Womens Spark -1C/30F Down Sleeping Bag

    Weighs
    591g (Regular)
    Weighs:
    591g (Regular)
    Comfort Limit:
    -1°C
    Type:
    Mummy
    Insulation Type:
    Down
    Down Treatment:
    Hydrophobic
    Fill Weight:
    375g (based on regular size)
    Fill Power:
    850
    Zip Length:
    1/2 Length
    Zip Position:
    Right Zip

    Sea to Summit have redesigned its renowned Spark sleeping bag line, featuring high-quality materials and ethically sourced down. Now featuring waterproof material at the hood and foot box for increased protection from condensation. Sea to Summit...

    From: £339.99
    RRP: £399.99 | Save: £60.00
    + Quick Add
  • -9C
    Womens Spark -9C/15F Down Sleeping Bag Womens Spark -9C/15F Down Sleeping Bag
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    Sea to Summit

    Womens Spark -9C/15F Down Sleeping Bag

    Weighs
    947g (Regular)
    Weighs:
    947g (Regular)
    Comfort Limit:
    -9C
    Type:
    Mummy
    Insulation Type:
    Down
    Fill Weight:
    685g (based on regular size)
    Fill Power:
    850
    Down Treatment:
    Hydrophobic
    Zip Length:
    3/4 Length
    Zip Position:
    Right Zip

    Sea to Summit have redesigned its renowned Spark sleeping bag line, featuring high-quality materials and ethically sourced down. Now featuring waterproof material at the hood and foot box for increased protection from condensation. Sea to Summit...

    From: £424.99
    RRP: £499.99 | Save: £75.00
    + Quick Add
  • 4°C
    Womens Spark 7C/45F Down Sleeping Bag Womens Spark 7C/45F Down Sleeping Bag
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    Sea to Summit

    Womens Spark 7C/45F Down Sleeping Bag

    Weighs
    411g (Regular)
    Weighs:
    411g (Regular)
    Comfort Limit:
    4°C
    Type:
    Mummy
    Insulation Type:
    Down
    Down Treatment:
    Hydrophobic
    Fill Weight:
    200g (based on regular size)
    Fill Power:
    850
    Zip Length:
    1/2 Length
    Zip Position:
    Left Zip

    Sea to Summit have redesigned its renowned Spark sleeping bag line, featuring high-quality materials and ethically sourced down. Now featuring waterproof material at the hood and foot box for increased protection from condensation. Sea to Summit...

    From: £254.99
    RRP: £299.99 | Save: £45.00
    + Quick Add
  • -16°C
    Womens Trek -9C Down Sleeping Bag Womens Trek -9C Down Sleeping Bag
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    Sea to Summit

    Womens Trek -9C Down Sleeping Bag

    Weighs
    1614g (Regular)
    Weighs:
    1614g (Regular)
    Comfort Limit:
    -16°C
    Type:
    Mummy
    Fill Weight:
    800g (based on regular size)
    Fill Power:
    650
    Down Treatment:
    Hydrophobic
    Zip Length:
    Full Length
    Zip Position:
    Right Zip
    Insulation Type:
    Down

    The Sea to Summit Women’s Trek -9C Down Sleeping Bag is perfect for cold weather camping. Its 650+ fill power duck-down insulation ensures warmth even in damp conditions. The semi-rectangular fit and Free Flow Zip System provide comfort and...

    £319.99
    RRP: £374.99 | Save: £55.00
    + Quick Add
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We specialise in basecamp and backpacking sleeping bags. Basecamp bags are roomier, with features that add comfort, backpacking bags are lightweight with small pack sizes.