Sleeping Bag Liners

Why use a sleeping bag liner?

This thin inner sack, also known as a liner or "silk liner", sits inside your sleeping bag and transforms the bivouac experience. It adds extra warmth (several degrees of thermal comfort depending on the material), a pleasant softness against the skin, and above all, better hygiene: it protects the down from sweat and is far easier to wash than the sleeping bag itself. All this for just a few grams and a tiny packed size - an unbeatable benefit-to-weight ratio.

Silk: lightness and thermal comfort

Silk is the go-to material for sleeping bag liners: naturally thermoregulating, it keeps you warm in cold weather and cool when it's hot. Extremely lightweight and compressible, it packs down to the size of a fist. Soft and hard-wearing, it glides smoothly against the skin without snagging. Compared to cotton, which is heavier and slower to dry, or microfiber, silk offers the best balance of weight, warmth and comfort for walkers who count every gram.

A lightweight, hygienic silk liner

Beyond the extra warmth, a silk liner can also be used on its own: on warm nights or in mountain huts, it works perfectly well as lightweight, hygienic bedding without the need for a down sleeping bag. It's also ideal for nights in dormitories or stopover accommodation, where having your own bedding is always appreciated. Its shape mirrors that of a sleeping bag (mummy or rectangular) - choose the model that matches yours for a perfect fit.

Getting properly equipped

A silk liner is the perfect companion to your sleeping bag, especially the ultralight models. A small addition that makes a real difference to your comfort on nights out in the wild.