Sleeping in a sleeping bag

Sleeping outdoors is a wonderful experience. A sleeping bag helps keep you warm so you can recharge for the next day’s adventure.

Sleeping bag in the right size

It’s worth investing in a sleeping bag that fits your body and your needs. A sleeping bag works best when it’s just the right size, creating a warm layer of air around you. If it’s too large, your body will struggle to heat the air inside. If it’s too tight or too short, the insulation gets compressed and won’t keep you as warm.

Choose the right comfort temperature

In recent years, sleeping bags have been tested and labelled according to a standardised system. The key rating to look for is the comfort temperature – this indicates the temperature at which you can sleep comfortably. The same standard also specifies a lower limit temperature for survival.

As a general rule, choose a sleeping bag rated for slightly colder temperatures than you expect. You can always ventilate if you get too warm. If weight is a priority, you might opt for an ultralight summer sleeping bag. Keep in mind that individuals vary – what works for one person may not work for another. In general, women tend to need a slightly warmer sleeping bag than men.Down provides the best insulation relative to its weight and packs down smaller than synthetic alternatives. However, it is sensitive to moisture and loses much of its insulating ability when wet. If a down sleeping bag gets wet, it can take a long time to dry. It is also more expensive.

Down or synthetic sleeping bag?

• Down provides the best insulation relative to its weight and packs down smaller than synthetic alternatives. However, it is sensitive to moisture and loses much of its insulating ability when wet. If a down sleeping bag gets wet, it can take a long time to dry. It is also more expensive.
• Synthetic insulation performs better in damp conditions and is therefore more practical in wet environments. It is less sensitive than down and usually more affordable. However, synthetic sleeping bags are typically heavier and bulkier. If you have allergies, synthetic is the obvious choice.

Two sleeping bags provide flexibility

If you’re heading out during colder months, using a double sleeping bag setup is a good idea. A winter sleeping bag rated for around -5 to -10°C works well well into autumn. Combined with a lightweight summer sleeping bag, it can provide enough warmth even for very cold conditions. It’s best to use a down sleeping bag closest to your body and a synthetic one on the outside – condensation is better absorbed by the synthetic layer than by down.

You can also boost warmth with additional thin layers. Sleeping bag liners are available in fleece, wool and silk. There are also outer covers that act like a shell over the entire sleeping bag. Use two sleeping mats, as most of the cold comes from below. A pair of down booties can make a big difference for cold feet.

Washing your sleeping bag

Sleeping bags need to be washed occasionally to maintain performance. Body oils build up in the fabric and insulation, reducing effectiveness. A sleeping bag liner can help delay this (and is easier to wash), but eventually the bag itself will need cleaning.

Most sleeping bags can be machine washed using a mild detergent and no fabric softener. Always follow the care instructions carefully. After washing, synthetic bags can be air-dried or tumble-dried. Down sleeping bags can also be tumble-dried, but slowly and on low heat. A useful tip is to add tennis balls or similar to the dryer to help redistribute the down and restore loft. Be gentle – you don’t want to damage the feathers.

There are also specialist services that clean sleeping bags and technical clothing. If you’re unsure or short on time, it can be worth using a professional service to ensure proper care.

Storing your sleeping bag

Store your sleeping bag hanging in a dry space when not in use. The insulation performs best when it is not compressed.

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