The moistureproof mat is very important in camping. Every donkey friend has at least one moistureproof mat of his own. It has three main functions: first, anti-rolling, because it is difficult to find a flat place when camping in the field, generally there are stones, grass heads, sundries on the bottom. So when you sleep, you will feel very uncomfortable. If you use a damp-proof mat, the situation will be much better. Second: keep warm, because the body is usually in direct contact with the ground when camping in the field, the thermal insulation effect of the tent sole is slight, so if there is moisture-proof mattress between the body and the ground, the thermal insulation effect will be much better. Third: Moisture-proof. When camping in the field, the ground is usually very wet at night. The moisture-proof mattress has the characteristics of not absorbing water, so it can play the role of moisture-proof.