MSS Intermediate Sleeping Bag | USGI Cold Weather Sleep System Component
The 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 System
The 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 Conditions
Down 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 Performance
This 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 List
- Genuine USGI MSS Intermediate Sleeping Bag
- Also known as the Intermediate Cold Weather Sleeping Bag
- Part of the U.S. Army Modular Sleep System
- Rated from +30°F to -10°F under military conditions
- Practical comfort range is closer to 0°F to 10°F for many users
- Layers with the MSS Patrol Sleeping Bag for deeper cold
- Compatible with the MSS Gore-Tex Bivy Cover
- Water-resistant ripstop nylon shell
- Double-layer synthetic insulation
- Synthetic fill retains more warmth when damp than down
- Double-insulated foot box helps reduce cold feet
- Sewn-in quilted chest collar helps block drafts
- Adjustable hood with nylon drawcord and barrel lock
- Oversized YKK zipper works from inside or outside
- Snap fasteners connect to other MSS components
- Non-flammable and machine washable
- Made in USA by Tennier Industries
- NSNs may include 8465-01-547-2694, 8465-01-547-2757, 8465-01-445-6274, 8465-01-398-0687
Need 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.
