The right sleeping mat for your sleeping bag
The most important element under a sleeping bag is the sleeping mat . The sleeping bag can only insulate from above , as it is compressed at the bottom by body weight. Therefore, the sleeping mat should have a better thermal rating than the sleeping bag, since sleeping mats are usually measured without any load.
In VW vans, it's particularly important to note that the sleeping surfaces are often well-ventilated but don't provide sufficient insulation. Therefore, it can get cold inside your sleeping bag, even if the bag itself is warm enough. It's recommended to bring an additional sleeping mat for better insulation.
