Genuine U.S. Military Improved Modular Sleep System (IMSS), 4-Piece Sleeping Bag System with Patrol Bag, Cold Weather Bag, Waterproof Bivy Cover & Compression Stuff Sack, ACU Digital, USA Made

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About this item

• COMPLETE 4-PIECE MODULAR SLEEP SYSTEM - Includes the Patrol Sleeping Bag, Intermediate Cold Weather Sleeping Bag, Waterproof Bivy Cover, and Compression Stuff Sack. Each component can be used independently or together to adapt to changing weather conditions.
• GENUINE U.S. MILITARY ISSUE - Authentic U.S. Government Issue Improved Modular Sleep System (IMSS) manufactured by Tennier Industries and built to military specifications. Made in the USA.
• VERSATILE FOUR-SEASON DESIGN - The modular design allows you to use individual components during mild weather or combine them for increased insulation in colder conditions. Ideal for camping, backpacking, hiking, overlanding, hunting, emergency preparedness, and outdoor adventures.
• WATER-RESISTANT SLEEPING BAGS - Both mummy-style sleeping bags are constructed from durable ripstop nylon with water-resistant shells to help provide dependable comfort in a variety of outdoor environments.
• BREATHABLE WATERPROOF BIVY COVER - The included waterproof, wind-resistant bivy cover features durable 3-layer laminate construction that helps shield your sleeping system from rain, wind, and ground moisture while allowing moisture vapor to escape.
• COMPACT COMPRESSION STUFF SACK - Heavy-duty compression sack features six adjustable compression straps that reduce packed size for easier storage and transport during camping, backpacking, and travel.
• DESIGNED FOR COMFORT - Features include adjustable insulated hoods, draft flaps, anatomically shaped foot boxes, quilted chest collar, durable zippers with top or bottom ventilation, and self-repairing zipper sliders if snagged.
• AUTHENTIC GOVERNMENT ISSUE NSNs - Includes original National Stock Numbers (NSNs): Complete IMSS 8465-01-547-2757, Stuff Sack 8465-01-547-2670, Bivy Cover 8465-01-547-2644, Patrol Sleeping Bag 8465-01-547-2706, Intermediate Sleeping Bag 8465-01-547-2694.

Product Description

Sleep comfortably across a wide range of outdoor conditions with the Genuine U.S. Military Improved Modular Sleep System (IMSS). Designed as a versatile four-piece sleep system, this authentic government-issued set allows you to customize your sleeping setup by using each component individually or combining them for increased warmth when temperatures drop. The system includes two mummy-style sleeping bags—a Patrol Sleeping Bag for milder conditions and an Intermediate Cold Weather Sleeping Bag for colder environments. Both are constructed from durable water-resistant ripstop nylon and feature insulated hoods, draft-reducing construction, durable ventilation zippers, and thoughtfully designed foot boxes for added comfort. Completing the system is a breathable waterproof bivy cover that helps protect against rain, wind, and ground moisture, along with a compression stuff sack that significantly reduces packed size for convenient transport and storage. Whether you're camping, backpacking, overlanding, hiking, hunting, or assembling an emergency preparedness kit, this modular sleep system delivers the flexibility and durability trusted by outdoor enthusiasts and military surplus collectors alike. Manufactured by Tennier Industries and proudly made in the USA, this is an authentic U.S. Government Issue sleep system built to demanding specifications.