Check the listing for details. Therm-a-Rest Self-Inflating Sleeping Mat - Green/Grey Pre Owned. Color: Green, Condition: Used. Listed at 9.99 USD. Used like new condition US Surplus Self Inflating Sleeping Mats. Used THERM-A-REST SELF-INFLATING SLEEPING MAT - Choose ODG, Forrest Green or GrayUS Government Issue The Therm-A-Rest Self-Inflating Sleep mat is a US Government Issue item that accompanies the conventional Military Sleep System. It features a self inflating valve that when open, fills the unrolled sleep mat with air. Once full, closing the valve keeps air trapped inside the mat, ensuring a comfortable barrier between the body and ground. It duly acts as an insulator, keeping your body heat from transferring to the cold ground. Features:No pump needed: Self-inflates in secondsGenuine Military Issue Constructed with thick weatherproof nylonLightweight and easy to secure