They look and feel very thin, and are cool to the touch, yet when it comes to choosing sleeping bag liners, the silk ones always seem to be positioned – and certainly priced – as the premium ...

The best sleeping bag liners are precious middle layers, like pickle in a cheddar sandwich. Sitting between the human and the sleeping bag, or the bread and the cheese, neither would be the same ...

Silk liners are extremely lightweight and easy to pack. They can keep you warm in cold weather but still breathe enough to keep you cool in hot weather. Sleeping bag liners come in various sizes.

Made from 100 per cent silk, this smooth and luxurious rectangle liner makes sleeping in sweltering temperatures that much easier. Housed in a drawstring carry bag, it’s compact to pack into ...

Mulberry silk is prized for its durability ... us pointed out that my “find” was also widely used as a sleeping-bag liner, meant to provide a little extra warmth to the camper while also ...

The Cocoon Ripstop Silk Mummy Liner ($65; www.rei.com) is just the deal. Use it as a superlight sleeping bag, or add it to any bag for more warmth. It also helps keep a sleeping bag clean.

The third option is to buy a sleeping bag liner and use that as a super-light ... They re available in silk ($50), flannel ($30) and cotton ($20). Get a sneak peak of Outside s picks for Gear ...

1. Lifeventure Silk Sleeping Bag Liner: £47.99, Lifeventure open image in gallery Let’s face it – some hostels aren’t hygienic, so a quality sleeping bag liner is a must. This silk one is ...