Choosing, using and caring for a sleeping bag
- Read the temperature ratings – Many sleeping bags are tested to EN ISO 23537, with comfort, limit and extreme ratings.
- Weigh up the fill – Down: lighter and more compressible for the same warmth but sensitive to wetness.
- Check the fit – Choose a suitable length and width: too big means cold air that has to be warmed; too tight compresses the fill.
- Use it correctly – Shake the bag out before sleeping so the fill lofts.
- Air after every night – In the morning let moisture escape, air it or dry it in the sun if possible before packing it again.
- Store loosely – At home, store it loosely in a large breathable bag or hanging up, not in the compression sack.
- Wash per manufacturer instructions – Wash only when necessary and exactly per the manufacturer's instructions (detergent, temperature, drying).
Danger: The standardised extreme rating describes a range in which there is a risk of hypothermia. Never choose a sleeping bag for the planned trip based on this value.