Intermediate Sleeping Bag | Modular Sleep System ( MSS )

MSS Intermediate Sleeping Bag | USGI Cold Weather Sleep System ComponentThe MSS Intermediate Sleeping Bag is the cold-weather workhorse of the U.S. Army Modular Sleep System. It gives you serious field-ready warmth without relying on fragile down insulation. Use it alone in cold weather, or layer it with the  MSS Patrol Sleeping Bag and the MSS Gore-Tex Bivy Cover for the full system.This genuine USGI Intermediate Cold Weather Sleeping Bag is rated from 30°F to -10°F under military conditions. That rating matters, but it needs context. The -10°F number is closer to a survival threshold than a comfort rating. For most campers, hunters, and outdoor users, real-world comfort is closer to 0°F to 10°F.   A quality sleeping pad rated R-4 or higher will help reduce heat loss through the ground.Built for the Modular Sleep SystemThe Intermediate Bag was designed to work inside the Army MSS Modular Sleep System. It is wider than the Patrol Bag, so it can layer properly without crushing insulation. Snap fasteners along the zipper help connect it to other MSS components.Use this bag by itself when the weather drops below patrol-bag territory. For deeper cold, pair it with the MSS Patrol Sleeping Bag. Add the Gore-Tex Bivy Cover when you need extra wind and moisture protection. You can also shop the complete MSS Modular Sleep System bundle if you want all components together.Synthetic Insulation for Wet Field ConditionsDown is light and warm, but it has one major weakness. When it gets wet, it collapses and loses loft. This Army Intermediate Sleeping Bag uses synthetic insulation that retains more warmth when damp. That makes it a smart choice for hunting camps, training areas, truck kits, emergency gear, and unpredictable outdoor conditions.The water-resistant ripstop nylon shell helps shed light moisture. Meanwhile, double-layer continuous filament insulation reduces cold spots. The foot box has extra insulation, which helps protect one of the first areas to feel the cold.Genuine Military Surplus PerformanceThis bag was made for real field use, not showroom camping. It features a heavy-duty YKK zipper, adjustable hood, nylon drawcord, barrel lock, and a sewn-in quilted chest collar. The collar helps reduce drafts through the hood and upper bag.Manufactured in the USA by Tennier Industries, this military surplus sleeping bag is a proven cold-weather component for soldiers, hunters, preppers, overlanders, and outdoor enthusiasts.NSNs may include 8465-01-547-2694, 8465-01-547-2757, 8465-01-445-6274, and 8465-01-398-0687.Product Feature ListGenuine USGI MSS Intermediate Sleeping BagAlso known as the Intermediate Cold Weather Sleeping BagPart of the U.S. Army Modular Sleep SystemRated from 30°F to -10°F under military conditionsPractical comfort range is closer to 0°F to 10°F for many usersLayers with the MSS Patrol Sleeping Bag for deeper coldCompatible with the MSS Gore-Tex Bivy CoverWater-resistant ripstop nylon shellDouble-layer synthetic insulationSynthetic fill retains more warmth when damp than downDouble-insulated foot box helps reduce cold feetSewn-in quilted chest collar helps block draftsAdjustable hood with nylon drawcord and barrel lockOversized YKK zipper works from inside or outsideSnap fasteners connect to other MSS componentsNon-flammable and machine washableMade in USA by Tennier IndustriesNSNs may include 8465-01-547-2694, 8465-01-547-2757, 8465-01-445-6274, 8465-01-398-0687Need help understanding the full system? Read our MSS Modular Sleep System Guide to compare the Patrol Bag, Intermediate Bag, Gore-Tex Bivy Cover, and complete MSS bundle.