Gina Johnson
Military sleeping bags are designed to keep soldiers warm and comfortable in diverse sleeping conditions, ranging from mild to extremely cold weather. The US Military Modular Sleep System (MSS) is a popular option, consisting of two Mummy-style sleeping bags, a bivy cover, and a stuff sack. Each sleeping bag in the MSS system can be used independently or together, offering flexibility and protection from the elements. Other options include the Wiggy's Center-Zip Military Sleeping Bag, which is a modern version of the bags used during the Korean War, and the US Military Improved 5-Part ACU Digital Sleep System. These sleeping bags are designed to provide warmth, durability, and, in some cases, water resistance for soldiers in various climates and environments.
| Characteristics | Values |
|---|---|
| Name | US Military Modular Sleep System (MSS) |
| Number of pieces | 4 |
| Sleeping bag types | Mummy-style |
| Sleeping bag names | Patrol, Intermediate Cold Weather |
| Bivy cover | Waterproof Gore-Tex |
| Compression stuff sack | Yes |
| Weight | 9 lbs |
| Temperature ratings | -50°F to 50°F |
| Insulation | Lamilite |
| Zipper location | Center |
| Brands | Tennier Industries Inc., Wiggy's, Kelty, Army Surplus World, Amazon, REI |
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What You'll Learn
The US Military Modular Sleep System (MSS)
The patrol bag, also known as the temperate sleeping bag, is designed for more temperate climates, ranging from approximately 30 to 50 degrees Fahrenheit. It is rated at +30 degrees and can be used independently or together with the intermediate cold weather bag in colder environments. This bag is lightweight and comes in olive or green.
The intermediate cold weather bag is rated for temperatures between -10 and 30 degrees Fahrenheit. It is black and can be used independently or combined with the patrol bag for increased warmth. When used together, the two bags can be snapped together, and the system is rated for temperatures down to -30 degrees Fahrenheit. With the right clothing, the military claims that this system can keep a user comfortable at temperatures as low as -50 degrees Fahrenheit.
The bivy cover is made of waterproof and windproof 3-layer GORE-TEX fabric and includes snap fasteners and slide fasteners. It can be used with either of the sleeping bags to provide additional protection from the elements. The stuff sack is used to store and compress the entire system, and it can be challenging to get all three pieces into the sack, which measures about 12" wide and 14" tall when packed. The combined weight of the system is 9 lbs, which is considered excessive by some users.
The US Military Modular Sleep System offers increased protection from the elements compared to the average sleeping bag. It provides more padding to level out the ground and may be waterproof. It is a versatile system that can be mixed and matched to suit the user's needs in various terrain and climates.
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Army-issued vs civilian sleeping bags
The US Military Modular Sleep System (MSS) is a sleeping bag system designed for use in both mild and extremely cold weather. It consists of two Mummy-style sleeping bags (the Patrol and Intermediate Cold Weather bags), a bivy cover, and a stuff sack. Each bag is fully functional and can be used independently, with the Patrol bag designed for temperate climates ranging from 30 to 50 degrees Fahrenheit, and the Intermediate bag rated for temperatures between -10 and 30 degrees Fahrenheit. When used together with the bivy cover, the system can provide 4 hours of sleep at -40 degrees Fahrenheit.
The MSS is constructed to offer increased protection from the elements, with features such as waterproofing and increased padding to level out the ground. While some users have praised the MSS for its warmth and durability, others have criticised its bulk and weight, noting that it takes up a significant amount of space. The MSS is also designed to be modular, allowing users to dress it up or down depending on the weather conditions. This level of modularity is not always present in civilian sleeping bags, which may be designed for a specific temperature range.
Civilian sleeping bags often come in bright colours and may not feel as durable as military-issued bags. They can also be expensive, with a comparable civilian down bag costing upwards of $1000. However, civilian bags tend to be lighter, with some users opting to use civilian bags for backpacking trips due to their reduced weight and smaller pack size. It is worth noting that lighter civilian bags may not perform as well in wet conditions compared to the military-issued bags.
When choosing between a military-issued or civilian sleeping bag, it is important to consider your specific needs, such as the terrain and climate you will be camping in, as well as your budget and space constraints. While the military-issued MSS is designed to provide versatility and protection in a range of conditions, civilian bags can offer a wider range of options in terms of weight, pack size, and temperature ratings, albeit at a potentially higher cost.
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Wiggy's Center-Zip Military Sleeping Bag
The Wiggys Center-Zip Military Sleeping Bag is a modern version of the original design used by the military during the Korean War. It is a centre zip bag, which is considered the best design for military application. This is because soldiers in combat zones sleep in their clothing and a centre zip allows them to exit the sleeping bag quickly in the event of an attack. The bag also features two rows of snaps, one on each side of the zipper, which allow the bag to be closed if the zipper breaks and to attach to an optional bivi bag. The bivi bag is made without a zipper and instead uses snaps to attach to the sleeping bag. This allows the bag to be opened quickly in an emergency.
The Wiggys sleeping bag is known for its comfort and warmth, with users reporting that they never had to worry about their comfort while using the bag in Iraq. The bag is also lightweight and small, making it easy to carry. The bag is fitted with Wiggys exclusive break-a-way zipper, which allows the top slider to come off with a quick run of the zipper, making it easy to exit the bag quickly. The slider also locks in place to prevent accidental openings.
The Wiggys sleeping bag is constructed with Lamilite insulation, a uniquely developed continuous filament fibre that sets Wiggy brand insulated products apart. The company offers a lifetime guarantee for the sleeping bag, promising to repair or replace any bag that experiences issues with seams or insulation at no charge. However, they reserve the right to examine returned sleeping bags and determine if the return is justified based on the appearance and care of the bag.
The Wiggys Center-Zip Military Sleeping Bag is a popular choice among those seeking a high-quality, comfortable, and durable sleeping bag for extreme weather conditions. It is an excellent option for those who require a quick exit from their sleeping bag, such as soldiers in combat zones or individuals in emergency situations.
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The best sleeping bag for different climates
The US Military Modular Sleep System (MSS) is a popular option for those seeking a sleeping bag solution for different climates. This system typically includes two Mummy-style sleeping bags (the Patrol and Intermediate Cold Weather bags), a bivy cover, and a stuff sack. Each sleeping bag can be used independently, with the patrol bag designed for temperate climates ranging from 30 to 50 degrees Fahrenheit, and the intermediate bag rated for colder temperatures between -10 and 30 degrees Fahrenheit. When used together, the system can provide warmth in temperatures as low as -30 degrees Fahrenheit, or even -50 degrees Fahrenheit with the appropriate clothing. The bivy cover adds further protection from wind and rain, making it ideal for harsh weather conditions.
While the MSS is widely regarded as one of the best military sleeping systems in the world, there are other options available that offer similar versatility for different climates. One such option is the US Military Improved 5-Part ACU Digital Sleep System, which includes a summer bag, a bivy, and three additional components to provide insulation in extremely cold weather. This system allows for adaptability, as users can adjust the layers according to their specific climate needs.
For those seeking an even lighter and more compact option, the Wiggy's Center-Zip Military Sleeping Bag is a modern version of the bags used during the Korean War. Its center zip design allows for quick exit in case of emergencies, and its Lamilite insulation provides exceptional warmth and comfort. Wiggy's offers a lifetime guarantee for their sleeping bags, ensuring repairs or replacements at no charge if the insulation deteriorates or seams open.
When choosing a military-style sleeping bag, it's important to consider your specific needs. The MSS and ACU systems are ideal if you require a wide temperature range, while the Wiggy's bag may be preferable for those prioritizing weight, packability, and customer service. Additionally, it's worth noting that military-grade sleeping bags tend to be heavier and bulkier than civilian equivalents, so it's essential to balance your needs for warmth, weight, and space.
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Waterproof and windproof sleeping bags
Military sleeping bags are designed to provide a barrier between the user and the elements, ensuring safety and warmth. The US Military Modular Sleep System (MSS) is a popular option, consisting of two Mummy-style sleeping bags, a bivy cover, and a stuff sack. The MSS is designed for versatility, catering to both mild and extremely cold weather conditions. The patrol sleeping bag is suitable for temperate climates, with a temperature range of 30 to 50 degrees Fahrenheit, while the intermediate bag is rated for colder temperatures, from -10 to 30 degrees Fahrenheit. These bags offer increased protection and often include features like waterproofing and extra padding to level out the ground.
While the MSS is a widely used system, some service members have expressed concerns about its weight and bulkiness. The USMC sleep system is considered an alternative due to its construction. Other options include foreign brands like Carinthia and Stone Glacier, which are known for their durability and performance in cold climates.
Snugpak is another brand that offers lightweight military sleeping bags. Their Softie range, including the Softie 10 WGTE, Softie 12 WGTE, and Softie 15 WGTE, is highly regarded for its performance in various conditions. The Special Forces range provides size options for enhanced comfort. Snugpak sleeping bags are designed to keep users warm, comfortable, and dry, regardless of the conditions they face.
When choosing a military sleeping bag, it's essential to consider your specific needs, such as the terrain and climate you'll be camping in. The right sleeping bag will ensure you get a good night's rest, even in challenging outdoor conditions. Proper insulation, waterproofing, and windproofing are crucial factors in selecting a military sleeping bag to stay safe and comfortable during your expeditions.
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Frequently asked questions
The US Military uses the Modular Sleep System (MSS), which consists of two Mummy-style sleeping bags, a bivy cover, and a stuff sack.
The two sleeping bags in the MSS are the Patrol bag, rated at +30 degrees, and the Intermediate Cold Weather bag, rated at -10 degrees.
Yes, the two sleeping bags in the MSS can be used independently or together in colder environments. When used together with the bivy cover, the system is rated at -10 degrees.
The stuff sack is used to pack all three components of the MSS (the two sleeping bags and the bivy cover). However, it is quite large and heavy, measuring 12" wide and 14" tall when packed together.
Yes, some soldiers have mentioned using sleeping bags from brands like Wiggy's and Carinthia.
