• Forget about those closed-cell foam sleeping pads. An inflatable Therm-a-Rest—or similar model—is essential.

• Fluffing up your sleeping bag just before bed will create more air space between the insulation (especially if it’s down). A liner also dramatically increases the bag’s efficiency.

• Sleeping naked is better than sleeping in sweaty clothes. If you need more warmth, stuff extra clothes into the toe of the bag and along the sides.

• A pillow is key. You can either buy one (Therm-a-Rest sells a pillow that packs down to the size of a baseball) or make one by putting extra clothes in a stuff sack.

• If it’s cold, light a candle lantern inside the tent to cut down the moisture content and warm up the interior just before bedtime. If it’s really cold, boil some water, fill up your Nalgene and put it in your sleeping bag.

• Snacking on some munchies before bed helps keep the internal fire burning. A hot cup of tea or cocoa will also reduce the inner chills, but make sure to sleep with a pee bottle (properly labelled) so you don’t have to crawl out of the tent when you feel the effects of drinking liquids just before bed.