Gina Johnson
The US Military Modular Sleep System (MSS) is a four-piece kit designed to allow soldiers to sleep comfortably in a wide range of conditions. It includes two sleeping bags, a bivy bag, and a stuff sack. The two sleeping bags are designed for different climates, with one intended for warm weather and the other for colder temperatures. The bivy bag provides additional shelter, protecting from wind and water. The MSS is highly adaptable and durable, making it a popular choice for both military and civilian use.
| Characteristics | Values |
|---|---|
| Number of pieces | 4 (2 sleeping bags, 1 bivy bag, 1 stuff sack) |
| Colours | Woodland colours of dark green and black; newer models have grey and ACU pattern |
| Temperature range | -20 to 40 degrees Fahrenheit |
| Compressibility | Can be compressed using a compression bag or sack |
| Cost | Used sets range from $50 to $279; new sets cost about $150 |
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What You'll Learn
The US Military Modular Sleep System (MSS)
The patrol sleeping bag is designed for temperate climates, with a temperature range of 30°F to 50°F. It is lightweight and can be compacted easily, making it ideal for backpacking. The intermediate cold-weather sleeping bag is larger and heavier, offering warmth in temperatures ranging from +10°F to 30°F. When used in combination with the patrol bag, it provides extra warmth for colder weather.
The bivy cover can be used alone in warm weather or snapped over the patrol and/or cold-weather sleeping bags to provide additional protection from the elements. It is designed to cut out wind and water, keeping the user dry and comfortable in various environments. The compression stuff sack allows for compact storage of the sleeping bags and bivy cover, making it convenient for transport and backpacking.
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Army sleeping bags and rucksacks
Army sleeping bags are designed to provide a barrier between you and the elements, keeping you warm and dry in cold weather. They are made to endure rough wilderness conditions and are typically more durable than civilian sleeping bags. They are also often waterproof and insulated, making them ideal for camping, hiking, and survival kits.
The US Military Modular Sleep System (MSS) is one of the most popular army sleeping bag systems. It consists of two Mummy-style sleeping bags: the Patrol and the Intermediate Cold Weather, designed for temperate climates ranging from 30 to 50 degrees Fahrenheit and colder climates ranging from -10 to 30 degrees Fahrenheit, respectively. The system also includes a bivy cover and a stuff sack. The bivy cover acts as a shelter, cutting out wind and water, while the patrol bag is lightweight and compact. The intermediate bag is larger and provides more warmth for colder temperatures. When integrated, the entire system provides an extremely warm sleeping solution capable of handling temperatures below freezing.
Army rucksacks, or backpacks, are also designed to be durable and rugged, with enough space to carry essential gear for camping, hiking, or survival situations. They often feature multiple compartments and pockets for organizing gear and are typically made from water-resistant or waterproof materials to protect the contents from the elements.
Army Surplus stores are a great place to find military-grade sleeping bags and rucksacks. These stores offer a wide selection of new and used/surplus products, including sleeping bags, rucksacks, clothing, and other outdoor gear. The quality and condition of the items can vary, but many Army Surplus stores offer excellent customer service and expertise to help you choose the right gear for your needs.
Whether you're a first-time camper or a seasoned outdoor enthusiast, investing in high-quality army sleeping bags and rucksacks can provide you with durable, reliable, and warm gear for your adventures.
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The pros and cons of the MSS
The US Military Modular Sleep System (MSS) is a four-piece kit, comprising two sleeping bags, a bivy bag, and a stuff sack. The system is designed to allow soldiers to adapt to a wide range of conditions in the field. The two sleeping bags and the bivy bag can be used independently or combined into one sleep system.
Pros of the MSS
The MSS is a highly versatile system that can be adapted to suit various environments and conditions. The bivy bag, for example, can serve as a shelter, protecting users from wind and water. The patrol bag is lightweight and compact, making it ideal for backpacking, while the intermediate bag provides greater warmth for colder temperatures. The system is also durable, with high-quality materials and manufacture, ensuring it lasts a lifetime. The MSS is also now available at a much lower price, with complete used sets available for as little as $50 and new sets for around $150.
Cons of the MSS
The condition of the MSS can vary significantly depending on its storage history. This makes it difficult to guarantee the quality of the product when purchasing. The original MSS was also not considered cost-effective, with prices around $350, and better alternatives available commercially. Some users have also found the system to be bulky and heavy, particularly when compared to civilian alternatives.
Overall, the MSS offers a versatile and durable option for those seeking a sleeping bag system capable of handling a wide range of conditions. However, the variability in condition and the potential bulkiness of the system may be drawbacks for some users.
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Alternatives to the MSS
The US Military Modular Sleep System (MSS) is a four-piece kit, comprising two sleeping bags, a bivy bag, and a stuff sack. The two sleeping bags are designed for different weather conditions, with one being lighter and intended for warm weather use, and the other being larger and heavier, designed for colder weather. The bivy bag is an outer layer that provides shelter, protecting from wind and water. The stuff sack completes the kit.
The MSS has received mixed reviews. Some users have praised the MSS for its durability, warmth, and versatility, claiming it is the only sleeping system they need. It is also highly regarded for its modularity, allowing users to adapt to different environments by using different components of the system. The MSS is also available at a range of price points, with used kits available for as little as $47.25, and new kits for around $150.
However, some have criticised the MSS for its weight and bulkiness, particularly the intermediate bag, which is larger and heavier. The condition of the MSS has also been a point of contention, as the way it has been stored can drastically alter its performance.
If you are looking for alternatives to the MSS, there are a few options to consider. Firstly, you could opt for a custom sleep system. This involves buying individual components separately, such as a down bag/quilt for colder weather, and a synthetic quilt for warmer conditions. This allows you to layer and customise your sleep system according to your needs.
There are also commercial alternatives available that offer similar features to the MSS. For example, the Wiggy's bag, which has a rating of -40°F with a 0°F inner bag and a 30°F outer bag, providing versatility for different temperatures. Another option is the Mountainsmith Berthoud -20°F sleeping bag, which weighs 6 lbs, offering a lightweight alternative to the MSS. Additionally, you could consider foreign military-issued sleeping bags, such as those from Carinthia, which may offer similar performance and features to the MSS.
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The history of the MSS
The US Military Modular Sleep System, or MSS, is a four-piece system designed to allow soldiers to stay in the field under various conditions. It consists of two sleeping bags, a bivy bag, and a stuff sack. The two sleeping bags are designed for different temperatures, with one intended for warm weather and the other for colder climates. The MSS has been in use for almost 30 years and has seen several iterations, with the US military transitioning to a new version with different colours and the ACU pattern.
In May 1993, Wiggy's, a sleeping bag manufacturer, developed the Flexible Temperature Rated Sleep System (FTRSS), also known as the Fortress System. The USMC placed an initial order for 12 systems, and Wiggy's has continued to produce this system ever since. The FTRSS consists of two bags that can be used independently or combined into one sleep system, providing versatility for different temperature conditions.
Over the years, there have been different versions of the MSS, with varying levels of success. For example, Tennier Industries, the primary supplier to the USMC for over 30 years, created a two-bag system that underwent modifications every few years due to performance issues. Additionally, Slumberjack copied the Wiggy's bag and sold it under their label, but their system also faced performance issues. Despite these challenges, the MSS has been a trusted companion for many soldiers, with some continuing to use their army-issued sleep systems even after leaving the military.
Today, the MSS continues to be a reliable option for military personnel and outdoor enthusiasts alike. With complete used sets available for as little as $50 and new ones priced around $150, it offers a cost-effective solution for those seeking durable and versatile sleeping gear. While the condition of surplus MSS gear can vary, the system's longevity and adaptability to various climates remain its defining features.
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Frequently asked questions
The US Military Modular Sleep System (MSS) is made up of four components: two sleeping bags, a bivy bag, and a stuff sack.
The MSS is designed for a wide range of conditions. The patrol sleeping bag (the lighter of the two) is intended for warm weather use and can be used down to around 32°F to 40°F (0°C to 4°C). The MSS intermediate sleeping bag is rated for temperatures between -10°F and 30°F.
The MSS provides increased protection from the elements compared to a regular sleeping bag. It offers more padding to level out the ground, may be waterproof, and can keep you warm in extremely cold temperatures.
To pack the MSS into a rucksack, roll up each part of the system tightly and secure them with 550 cord to prevent unravelling. Place them vertically along the back of your pack and then pack your other gear. Alternatively, you can use a stuff sack to compress the system and place it in the bottom compartment of your rucksack.
