There are a few ways you can heat your tent. One option is to use a portable heater that runs on gas or electricity. These devices are usually small and light and can be easily set up in the tent.
Another option is to use insulating materials like air mattresses or sleeping pads to keep the cold off the floor. Wearing warmer clothing and using sleeping bags that are rated for cold temperatures can also help keep the heat inside the tent.
Overall, it is important to prepare well and take the right precautions to stay warm in the tent.
However, it is important to ensure that the heater is used safely inside the tent and that it is adequately ventilated to avoid the risk of carbon monoxide poisoning. Caution: fire hazard! Do not leave unattended!