How to stay warm while camping
Start with insulation beneath you, choose a sleeping bag suited to the expected overnight low, and keep your clothing and bedding dry. Add layers before you get cold, and have a plan to get warm or leave if conditions are worse than expected.
Ben’s original post came from camping in northern Minnesota, where evenings can be cold even after a warm day. Check the overnight forecast, wind and wet conditions rather than packing for the afternoon temperature.
Insulate yourself from the ground
A sleeping bag compresses under your body, reducing the insulation there. A sleeping pad separates you from the ground and is as important as the bag. Look for the pad’s R-value: higher values generally mean more resistance to heat loss. Match the pad to the season and conditions rather than choosing solely by thickness.
For cold ground, a compatible closed-cell foam pad can add insulation under an inflatable pad. Check the manufacturer’s specifications and carry a repair kit if your primary pad is inflatable. The National Park Service camping checklist also recommends a ground pad and a bag matched to the weather.
Choose a suitable sleeping bag
Check the overnight low and choose a bag with a comfort rating appropriate for you and a margin for changing conditions. A survival or lower-limit rating is not a promise that every sleeper will be comfortable at that temperature. Personal metabolism, the pad, wind, moisture and clothing all matter.
Let the bag loft after unpacking, close drafts around its opening as designed, and avoid compressing it with tight outer layers. A clean, dry liner can add comfort, but do not assume an unverified temperature boost.
Stay dry and layer thoughtfully
Change out of damp clothes before bed. Wear dry sleep layers and socks suited to conditions; keep spare clothing protected from rain and condensation. Avoid overdressing to the point of sweating, since moisture can make you colder later.
Eat and drink adequately, and use the bathroom before bed if needed. A warm drink may be comforting, but it does not replace appropriate insulation. Do not rely on alcohol to stay warm.
Set up your campsite
Choose a sheltered site away from drainage paths, following campground and land-manager rules. Keep your tent and sleeping gear dry, maintain the ventilation the tent manufacturer recommends, and avoid contact with wet tent walls.
Cold-weather safety
Never use a charcoal grill, lantern or portable camping stove inside a tent or camper: carbon monoxide is odorless and can be fatal. See the CDC’s carbon monoxide guidance.
Shivering, confusion, unusual drowsiness or loss of coordination can signal hypothermia. Move the person to a warmer sheltered place, remove wet clothing, insulate them and seek emergency help. If you cannot stay dry and warm with the equipment you have, change plans or leave.
Frequently asked questions
Is a warmer sleeping bag enough?
Not by itself. A suitable sleeping pad and dry conditions are essential parts of the system.
Should I wear all my clothes to bed?
Use dry layers appropriate to the temperature, but avoid sweating or compressing the bag’s insulation.
Can I run a camp stove inside the tent?
No. Combustion devices can produce dangerous carbon monoxide.
Why can a summer night feel cold?
Temperature can drop sharply after sunset, particularly with wind, wet ground or altitude. Check the overnight forecast.