I'm Thailand-bound for a few weeks' back-packing, but I'm worried my sleeping bag will be too hot, and I don't want to buy another one. Any suggestions?

Why not get a silk travelsheet? It will add a bit of luxury if you are roughing it and is a perfect sleeping bag in hot temperatures.

What's special about it?

It weighs nothing, packs up into a small hankerchief-sized bag, is easy to wash and dries in no time at all. You can use it on its own on hot nights or, for additional warmth, you can slip it in your sleeping bag, which gives you the added comfort of a sheet and keeps your bag clean.

Sounds expensive.

There are two versions - a single-size economy silk travelsheet for £34.99, or the luxury checked-silk larger model made from natural silk for £49.99. If that's too much, Cocoon also makes mummy liners to go in your sleeping bag and lightweight travelsheets made from breathable ripstop nylon microfibre.

Where do I get one?

For stockists, phone First Ascent on 01629 580484, or visit www.cocoon.at.