Although raised from the earth's surface, the campsite and air beds do not provide insulation. They are not as warm as the mats that are self-inflating. 2.5 t0 10cm thick self-inflating mats and air beds are nearest to the ground, while the camping beds are far higher off in the ground. You can also check out the Top 10 Best Camping Heaters for Your Camping Tent [Guide]