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Sleeping bag liners

Guide

Sleeping bag liners

A thin liner separates you from bedding or your sleeping bag. An insulated blanket or quilt provides warmth itself and needs a suitable sleeping mat when used on the ground.

Key points

Check the hut's liner requirements before travelling.
A thin liner cannot replace a warm sleeping bag.
Match a quilt's width and attachments to your sleeping mat.

What do you need overnight?

Use	Choose	Bear in mind
Staffed mountain hut	ChooseThin sleeping bag liner	Bear in mindUse as a clean layer beneath the bedding provided.
Keeping a sleeping bag clean	ChooseMatching liner	Bear in mindThe length and shape should leave space without bunching around your feet.
Camper and cool evenings	ChooseInsulated blanket or quilt	Bear in mindPlan insulation beneath you and a way to keep the sides closed.

What to look for

Question	In brief	Why
Silk, cotton or synthetic?	In briefPacked size and feel	WhyCotton feels familiar but takes up more room. Synthetic and lightweight fabrics can pack smaller.
Rectangular or mummy shape?	In briefMatch bed and sleeping bag	WhyA wide shape allows more movement in bed. Inside a narrow sleeping bag the liner should not bunch up.
How much warmth?	In briefCheck filling and use	WhyFor insulated models compare the manufacturer's temperature guidance and check whether the foot area closes.

Common questions

Is a liner enough in a tent?

A thin liner mainly provides a washable inner layer. A cold night in a tent needs a suitable sleeping bag or quilt and a sleeping mat. Plan around the expected overnight temperature rather than the name of the product.

Can I use a blanket instead of a quilt?

A blanket is versatile but can open at the sides while you sleep. A purpose-built quilt may have a footbox and mat attachments. Compare those details if you intend to use it as part of your sleeping system.

Which shape works in mountain huts?

A rectangular liner gives you room in bed, and a pillow pocket can cover the head area. Ask the hut about its current requirements. Sleeping in an unheated winter room calls for considerably more insulation.

How should I wash a liner?

Follow the fabric's care label and dry it fully before packing it away. Silk and wool need different care from cotton or synthetic fabrics. For an insulated blanket, follow the instructions for its filling as well.

Last updated: November 2026