USGI Sleep Systems

Equip for any mission with genuine USGI Modular Sleep Systems (MSS)—the U.S. military's proven, layered sleeping solution for extreme conditions. Includes the lightweight patrol bag (30–50°F), intermediate cold-weather bag (-10–30°F), waterproof/breathable Gore-Tex bivy cover, and compression stuff sacks for packability. Combine layers for ratings down to -30°F to -40°F (with 4+ hours of sleep in full setup). Synthetic fill, ripstop nylon, mummy design—durable, weather-resistant, and field-tested. Perfect for bushcraft, tactical training, hunting, or cold-weather survival. Shop authentic surplus MSS kits now!