A sleeping pad is ideal to take with you during your adventure or tactical deployment. They are very comfortable and have high thermal insulation. A sleeping mat is great for adventurers who travel around a lot and spend the night in a tent or even outdoors. Sleeping mats are filled with air in many different ways. Air is a logical insulating material that is always and everywhere available. Some self-inflating mats are filled with open cell foam or insulating material such as down or a synthetic fill to prevent heat loss through air movement. This allows you to sleep comfortably and warmly with a sleeping mat during (very) cold nights!