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Sleeping bag liners

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Sea To Summit Comfort Blend Rectangular Light Blue Sea To Summit Comfort Blend Rectangular Light Blue
  • Recommended price

    £31.59

    -30%

    £21.91

Made from a blend of Lyocell Tencel and polyester, the Sea To Summit Comfort Blend Rectangular bag sheet is super lightweight, so it's discreet among your belongings.

Colour
  • Sea To Summit Comfort Blend Rectangular Light Blue
Wilsa Drap De Sac Micro Polyester Sarco Wilsa Drap De Sac Micro Polyester Sarco Extra 5% off
  • £21.91

Wilsa's Micro Polyester Sarco is a lightweight, breathable sack sheet, offering optimal comfort and improved thermal insulation thanks to its sarcophagus design.

Sea To Summit Bag liners Silk Blend Rectangular w/ Pillow Sleeve Light Grey Overview Sea To Summit Bag liners Silk Blend Rectangular w/ Pillow Sleeve Light Grey Side
  • Recommended price

    £87.91

    -24%

    £66.79

The Sea To Summit Silk Blend Rectangular w/ Pillow Sleeve is a lightweight, insulating bag sheet with pillow sleeve.

Colour
  • Sea To Summit Bag liners Silk Blend Rectangular w/ Pillow Sleeve Light Grey Overview
Cocoon Coton Egyptian Rectangulaire Tuareg Cocoon Coton Egyptian Rectangulaire Tuareg
  • Recommended price

    £30.71

    -20%

    £24.55

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Colour
  • Cocoon Bag liners Coton Egyptian Rectangulaire Natural Overview
  • Cocoon Coton Egyptian Rectangulaire Tuareg
Wilsa Bag liners Drap Coton Rect Ecru Overview Wilsa Bag liners Drap Coton Rect Ecru Detail
  • £21.91

Wilsa's Drap Coton Rect Ecru is a lightweight, compact cotton sack sheet, ideal for camping and hiking.

Colour
  • Wilsa Bag liners Drap Coton Rect Ecru Overview
Wilsa Bag liners Drap Coton Sarco Ecru Overview Wilsa Bag liners Drap Coton Sarco Ecru Detail Extra 5% off
  • £21.91

Wilsa's Drap Coton Sarco Ecru is a lightweight, compact sack sheet in soft cotton, offering comfort and protection for your nights in the great outdoors.

Colour
  • Wilsa Bag liners Drap Coton Sarco Ecru Overview
C.A.M.P. Lining Envelope Microfibre Grey C.A.M.P. Lining Envelope Microfibre Grey Extra 5% off
  • Recommended price

    £26.31

    -20%

    £21.03

The Camp Lining Envelope Microfibre Grey is a lightweight, easy-care sleeping bag liner that enhances comfort and durability for outdoor adventures.

Colour
  • C.A.M.P. Lining Envelope Microfibre Grey
OutdoorDays
Sea To Summit Bag liners Reactor Mummy Standard with Drawcord Yellow Overview Sea To Summit Bag liners Reactor Mummy Standard with Drawcord Yellow Side
  • Recommended price

    £61.51

    -30%

    £43.03

The Sea To Summit Reactor Mummy Standard with Drawcord Yellow sheet offers optimal thermal comfort and effective odor management.

Colour
  • Sea To Summit Bag liners Reactor Mummy Standard with Drawcord Yellow Overview
Cocoon Thermolite Performer Mummy Volcano Black Cocoon Bag liners Thermolite Performer Mummy Volcano Black Keypoints
  • Recommended price

    £43.91

    -10%

    £39.51

Ideal to gain some degrees during nights that are colder than expected, the Cocoon Thermolite Performer Sarcophage Volcano Black is a warm, compact and lightweight mummy shape sleeping bag liner. 

Colour
  • Cocoon Thermolite Performer Mummy Volcano Black
C.A.M.P. Lining Envelope Polycotton Grey C.A.M.P. Lining Envelope Polycotton Grey Extra 5% off
  • Recommended price

    £21.91

    -12%

    £19.27

The Camp Lining Envelope Polycotton Grey is a lightweight, durable, and soft sleeping bag liner that enhances comfort and hygiene for campers.

Colour
  • C.A.M.P. Lining Envelope Polycotton Grey
Cocoon Bag liners Coton Egyptian Mummy Natural Overview Extra 5% off
  • Recommended price

    £28.95

    -15%

    £24.55

The Cocoon Coton Egyptian Mummy Natural sack sheet offers valuable thermal insulation in the tent, providing effective extra sleeping security.

Colour
  • Cocoon Bag liners Coton Egyptian Mummy Natural Overview
Cocoon Bag liners Coton Egyptian Rectangulaire Natural Overview Cocoon Bag liners Coton Egyptian Rectangulaire Natural Detail
  • Recommended price

    £30.71

    -14%

    £26.31

-

Colour
  • Cocoon Bag liners Coton Egyptian Rectangulaire Natural Overview
  • Cocoon Coton Egyptian Rectangulaire Tuareg
Cocoon Bag liners Coton Organic Junior Tuareg Overview Extra 5% off
  • Recommended price

    £23.67

    -11%

    £21.03

Providing welcome extra warmth on chilly evenings, the Cocoon Coton Organic Junior Tuareg sack sheet optimizes the insulation of the main sleeping area with great lightness.

Colour
  • Cocoon Bag liners Coton Organic Junior Tuareg Overview
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Cocoon Coton Organic Rectangulaire Natural Cocoon Coton Organic Rectangulaire Natural
  • Recommended price

    £26.31

    -16%

    £21.91

The Cocoon Coton Organic Rectangular Nature bag sheet offers comfort, softness and protection, guaranteeing pleasant nights in bivouacs thanks to its breathable, lightweight organic cotton.

Colour
  • Cocoon Coton Organic Rectangulaire Natural
Wilsa Bag liners Doublette Polaire Black Overview Wilsa Bag liners Doublette Polaire Black Base Extra 5% off
  • Recommended price

    £48.31

    -9%

    £43.91
Colour
  • Wilsa Bag liners Doublette Polaire Black Overview
Cocoon Bag liners Merino Wool Rectangulaire Black Overview Extra 5% off
  • Recommended price

    £87.91

    -25%

    £65.91

The Merino Wool Rectangular Black bag sheet from Cocoon offers a 7° C temperature gain thanks to its merino wool.

Colour
  • Cocoon Bag liners Merino Wool Rectangulaire Black Overview
Cocoon Bag liners Natural Silk Mummy White Overview Cocoon Bag liners Natural Silk Mummy White Side Extra 5% off
  • Recommended price

    £79.11

    -16%

    £65.91

The Cocoon Natural Silk Sarcophage White sack sheet in natural silk offers optimal warmth retention, comfort and lightness for restful nights camping.

Colour
  • Cocoon Bag liners Natural Silk Mummy White Overview
Cocoon Bag liners Natural Silk Rectangulaire White Overview Cocoon Bag liners Natural Silk Rectangulaire White Side Extra 5% off
  • Recommended price

    £79.11

    -16%

    £65.91

Cocoon's Natural Silk Rectangular White sleeping bag sheet in natural silk protects the sleeping bag and provides added warmth.

Colour
  • Cocoon Bag liners Natural Silk Rectangulaire White Overview
Sea To Summit Bag liners Reactor Mummy Standard Black Overview
  • Recommended price

    £52.71

    -16%

    £43.91

The Sea To Summit Reactor Mummy Standard Black bag sheet offers optimum thermal comfort and lightness for your nights in the bivouac.

Colour
  • Sea To Summit Bag liners Reactor Mummy Standard Black Overview
Cocoon Bag liners Thermolite Performer Rectangulaire Volcano Black Overview Cocoon Bag liners Thermolite Performer Rectangulaire Volcano Black Side Extra 5% off
  • Recommended price

    £43.91

    -20%

    £35.11

The Cocoon Thermolite Performer Rectangular Volcano Black sleeping bag sheet optimizes comfort in bivouacs and refuges, while keeping your sleeping bag clean.

Colour
  • Cocoon Bag liners Thermolite Performer Rectangulaire Volcano Black Overview
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How to make a sleeping bag warmer?

A sleeping bag liner is an essential element of your sleeping system when camping. It protects your sleeping bag and improves your sleeping comfort. A sleeping bag liner also offers a very soft and pleasant feeling in addition to providing additional thermal insulation.

Silk or cotton sleeping bag liners

Sleeping bag liners, which come in rectangular or mummy shapes to match your sleeping bag, are available in various materials, the two most common being cotton and silk.

Here are the advantages of each material:

Cotton sleeping bag liners

The most basic and cheapest. They absorb perspiration well and provide comfort at night. However, they are rather heavy (around 350 g in size regular) but very durable. A cotton sleeping bag liner will last years.

Silk sleeping bag liners

Silk offers softness and interesting thermoregulating properties. A silk sleeping bag liner will keep you warm in winter and fresh in summer. Silk is also very light and packable (around 110 g for a silk liner in size regular). The drawback being the price, silk is less affordable than cotton and less rugged. A silk liner can have a short lifespan, especially if you move around a lot during the night.

If you plan on camping often without covering great distances, a cotton liner will be perfect. On the other hand, if you are looking for maximum lightness for long backpacking trips, a silk liner will save you significant weight.

Which type of sleeping bag liner is best for thermal insulation, cotton, silk, fleece or thermolite?

While cotton and silk liners are the most common, nowadays you can also find warmer liners designed to camp in cold temperatures

Thermolite sleeping bag liners

This new material from Sea To Summit is made from hollow fibres which capture the air for more efficient insulation. The brand claims an increase of as much as 11 to 12°C degrees thanks to a Thermolite Reactor liner. (for a weight of around 260 g)

Fleece sleeping bag liners

Some brands offer fleece sleeping bag liners, designed for winter camping. Made of recycled polyester this material provides a real gain in terms of thermal comfort at night.

No matter the liner you choose, you can expect at least 2°C in addition to the insulation provided by your sleeping bag. If you plan on camping in winter, do not hesitate and opt for Thermolite or fleece for even more warmth.

Which liner to choose for trekking?

Generally speaking when it comes to trekking and backpacking, every gram counts. Silk liners are the best suited thanks to their unmatched lightness. Slightly heavy, silk and cotton mix liners offer the same thermoregulating properties as silk along with cotton’s durability. These mixed material liners may be heavier, but they will last longer.