Cold at night in a tent? Check the sleep setup before adding appliances
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Start with the bedding and the conditions you plan to camp in. Heating the tent is not a substitute for a suitable sleep arrangement or a decision to change plans when the weather exceeds it.
Identify when you feel cold
Notice whether discomfort comes from beneath you, around the shoulders or while getting changed. Record the mat, bag and dry layers used. This gives you a specific question to take to an equipment supplier.
Check the forecast for the campsite, including night-time conditions. Daytime sunshine is not an adequate guide to what the sleep setup needs to handle.
Read the bag's meaningful rating
Rab: sleeping bag temperature ratings explains the distinction between comfort, limit and emergency ratings. Check which figure applies to your bag instead of relying on its name or a season label.
Make sure the equipment fits the person using it. Ask for guidance where a child's arrangement or a particular medical need requires more than a general camping comparison.
Keep sleeping equipment dry
Separate wet outer clothing and boots from bedding. Plan a place for dry sleepwear and a protected route to find it at bedtime. Follow the tent's ventilation instructions rather than sealing every opening in an attempt to trap warmth.
Do not improvise combustion heating
The Camping and Caravanning Club: camping safety guidance warns against using fuel-burning appliances to heat tents and against bringing barbecues inside. A porch or awning is not an indoor kitchen or a place for a cooling barbecue.
If considering electrical equipment, resolve campsite supply and product suitability separately.
Keep the option to leave
Agree before departure what you will do if someone cannot stay comfortably warm. A nearby room or a shorter trip can be a sensible change. The useful purchase is equipment that addresses an identified need, not an appliance chosen to rescue an unsuitable overall plan.
Check your bag against the forecast
See also sleeping bag ratings explained and how to stay warm camping.
FAQs
Should I buy a heater if I feel cold in the tent?
First check the bag rating, the mat and your dry layers. Never use a fuel-burning heater in a tent; read how to heat a tent.
Where do I look for the forecast low?
Use the Met Office forecast for the campsite itself, not the nearest town.