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The Three Season Sleep System (3S) and Extreme Cold Weather Bag, when used with the required cold weather clothing layers, are effective down to -13 degrees Fahrenheit. This video will show you how to get the most out of your sleep system, from deciding what gear you need to pack to how to properly use and care for the system. Still have questions? Email [email protected].

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Three Season Sleep System (3S)

MARINE CORPS SYSTEMS COMMAND. Overview: The Three Season Sleep System (3S) proves Marines with cold weather protection at a.

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Source: www.marcorsyscom.marines.mil

Date Published: 8/20/2022

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USMC 3 Season Sleeping Bag System

The sleeping bag is made with a light weight compactable batting that proves a minimum 5.3 CLO rating, allowing the user to sleep comfortably in temperatures …

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Source: www.robertsbushcraft.com

Date Published: 3/15/2022

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Marine Corps Sleep System Training Video
Marine Corps Sleep System Training Video

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  • Author: Marine Corps Systems Command
  • Views: 조회수 118,786회
  • Likes: 좋아요 1,132개
  • Date Published: 2014. 3. 24.
  • Video Url link: https://www.youtube.com/watch?v=2JmLTnZUiJI

What sleeping system does the Marine Corps use?

Overview: The Three Season Sleep System (3S) provides Marines with cold weather protection at a decreased weight and volume. Features: The sleeping bag allows the user to sleep comfortably in temperatures above 20°F.

Who makes the Marine Corps sleeping system?

USMC 3 Season Sleep System. Carefully designed in conjunction with the United States Marine Corps. This cutting-edge sleep system is expertly crafted with the highest quality materials inside and out.

How do Marines clean their sleep system?

A. Sleeping Bag System can be washed in an industrial washing machine and dryer. Not recommend to use commercial machine.

What is the sleep system?

A sleep system is the sum total performance of the things you use to achieve a good night’s sleep outdoors. It can be broken down into three component categories: Sleeping Bags, Sleeping Pads and Pillows.

How do soldiers fall asleep fast?

An Easy Way to Fall Asleep Faster
  1. Relax your entire face. Close your eyes. …
  2. Drop your shoulders and hands. Let go of any tension. …
  3. Exhale and relax your chest. With your shoulders and arms relaxed, that should be easy.
  4. Relax your legs. …
  5. Now clear your mind. …
  6. Try repeating the words “Don’t think” for 10 seconds.

How much does a Marine Corps sleeping bag weigh?

US Military 4-PC Weather Resistant Modular Sleep System with Waterproof Gore-Tex Cover
Closure Type Drawstring
Item Dimensions LxWxH 25 x 21.1 x 8.8 inches
Item Weight 9.5 Pounds
Shape Mummy
Product Dimensions 25″L x 21.1″W

What sleeping bag does the military use?

Thor Love and Thunder – The Loop

The Modular Sleep System (MSS) is a modular sleeping bag used by the United States armed forces. The MSS consists of a camouflaged, waterproof, breathable Gore-Tex bivy cover, a lightweight patrol sleeping bag, and an intermediate cold weather sleeping bag.

How big is a military sleeping bag?

Military Modular Sleep System 4 Piece with Goretex Bivy Cover and Carry Sack
Size Regular
Fill Material Down
Outer Material Nylon
Brand Tennier
Item Dimensions LxWxH 24 x 17.9 x 10.3 inches

Can you dry army sleeping bag?

Army sleeping bags are often large, so you need the extra space. An industrial-size washer and dryer are ideal.

How do you wash a heavy duty sleeping bag?

How to machine wash a sleeping bag:
  1. Most sleeping bags can be machine washed, as long as a front-loading washer (or top-loading machine without an agitator) is used. …
  2. Wash on the gentle cycle in warm (or cold) water with an appropriate soap.

How long do down sleeping bags last?

With regular weekend use, a down sleeping bag can often last 10-15 years, especially for higher fill power down. In comparison, a synthetic bag might begin to feel colder in as little as 3-4 years.

How does the sleep function work?

The sleep function waits for seconds seconds or until a signal is delivered, whichever happens first. If sleep returns because the requested interval is over, it returns a value of zero. If it returns because of delivery of a signal, its return value is the remaining time in the sleep interval.

How many hours of sleep do you get in Marine bootcamp?

“Recruits get eight hours of sleep during the entire 54-hour exercise,” said Sgt. Roger Summers, a Delta Company drill instructor in the 1st Recruit Training Battalion at Parris Island. “They get 2½ Meals Ready to Eat [MREs], and they are responsible for rationing out the food to themselves.

How much sleep does the average Marine get?

On average, 60% of service members2 sleep fewer than six hours per night. Those who have been previously or are currently deployed sleep even less, at fewer than five hours per night. Either of these is significantly shorter than the recommended minimum of seven hours for adults.

How many hours of sleep do the Marines get?

All Marines require seven to nine hours of sleep each night—period.

U.S. G.I. USMC 3 Season Sleep System

Note: Boots pictured with compression sack are not included, only shown to depict the small compact size of the system.

Carefully designed in conjunction with the United States Marine Corps. This cutting-edge sleep system is expertly crafted with the highest quality materials inside and out. Each system includes the highly desirable USMC 3 season sleeping bag, USMC Improved Bivy Cover , and USMC SealLine waterproof compression stuff sack. The 3 season sleeping bag features a water-repellent nylon ripstop shell, polyester fill, draft baffle, and anti-microbial inner liner. There is more than enough room to add a sleeping pad. The bivy cover is made of 100% Nylon and 100% PTFE (Gortex) and features mesh bug screen. We completed this system with a genuine USMC issue SealLine waterproof compression dry bag for convenient, compact waterproof transport. Rated down to 20 degrees with proper clothing. When packed up and compressed in the dry bag, system measures 9’’ in diameter, 12’’ high and weighs 4.75lbs. The system is in used condition and will show signs of use or prior repairs but will be perfectly functional for many years of use. Color: Coyote. Genuine U.S. Military Surplus. MADE IN USA.

Please use this form to ask questions PUBLICLY about this specific product to previous customers and Coleman’s staff. Your question and any details in it may be posted to our website and sent to previous customers.

Please direct any questions that you would not want posted publicly, or need answers to in a timely fashion, to our Contact Us page to e-mail us directly.

USMC Issue 3 Season Sleeping Bag

USMC Military Issue 3 Season Sleeping Bag

The Coyote USMC sleeping bag was designed to be a lightweight compatible military sleeping bag for temperatures above 20°F. If combined with the full system of a Bivy, sleeping pad, and proper clothing it is rated to use down to 5°F. The USMC Sleeping bag is very soft, lightweight, and comfortable and in our opinion, it is the best feeling within the military line. The is produced with an antimicrobial liner that helps to protect against the growth of microorganisms, baffle tubing to trap in body heat, and full head closures to keep you warm. The zipper is very easy to use to get in and out. Available in both Medium and Long. We used and tested this bag at about 30 degrees in the Colorado mountains inside a tent. The bag was very comfortable, lofty, easy to pack, and use. Definitely a favorite as a 2-3 season bag.

Features & Specs

USMC Issue

U.S.A Made

3 Season rated 20 Degrees with the proper clothing

Soft, lightweight and compact

Wind baffle

Anti-microbial inner liner

Regular fits up to 5’11”

NSN: 8465-01-574-3998 (Regular)

NSN: 8465-01-574-4004 (Long)

Condition very good used.

What you should know about Military Surplus

All items are in good usable condition with plenty of uses left on them. However, due to these items being used by actual military personnel the conditions of each item may vary. Some items may have stains, writing, color fading, small repairs, and or surface rust on them. Smaller items may contain frays or small holes that do not affect the gears performance. Our staff has inspected all items and has made professional repairs on the items when needed. If for any reason there is an issue with the item, please reach out to our staff members and they will be more than glad to assist you and answer any questions you may have.

U.S. G.I. USMC 3 Season Sleep System

Note: Boots pictured with compression sack are not included, only shown to depict the small compact size of the system.

Carefully designed in conjunction with the United States Marine Corps. This cutting-edge sleep system is expertly crafted with the highest quality materials inside and out. Each system includes the highly desirable USMC 3 season sleeping bag, USMC Improved Bivy Cover , and USMC SealLine waterproof compression stuff sack. The 3 season sleeping bag features a water-repellent nylon ripstop shell, polyester fill, draft baffle, and anti-microbial inner liner. There is more than enough room to add a sleeping pad. The bivy cover is made of 100% Nylon and 100% PTFE (Gortex) and features mesh bug screen. We completed this system with a genuine USMC issue SealLine waterproof compression dry bag for convenient, compact waterproof transport. Rated down to 20 degrees with proper clothing. When packed up and compressed in the dry bag, system measures 9’’ in diameter, 12’’ high and weighs 4.75lbs. The system is in used condition and will show signs of use or prior repairs but will be perfectly functional for many years of use. Color: Coyote. Genuine U.S. Military Surplus. MADE IN USA.

Please use this form to ask questions PUBLICLY about this specific product to previous customers and Coleman’s staff. Your question and any details in it may be posted to our website and sent to previous customers.

Please direct any questions that you would not want posted publicly, or need answers to in a timely fashion, to our Contact Us page to e-mail us directly.

How To Build A Sleep System

Here at Therm-a-Rest we are a bit obsessed with sleep systems, we hoot and holler about them all the time at HQ. I would call it our mission to design the perfect sleep system, but it’s bigger than that really, it’s more of a quest.

We don’t mean to be dramatic, but we are acutely aware that comfortable night’s sleep outdoors can be the difference between elation and misery. Here we will walk you through building the right sleep system by showing you how to match sleep equipment to individual preferences as well as the conditions present.

If you’re more of a visual learner, Click Here to jump to the infographic below!

What is a Sleep System?

A sleep system is the sum total performance of the things you use to achieve a good night’s sleep outdoors. It can be broken down into three component categories: Sleeping Bags, Sleeping Pads and Pillows.

1. Sleeping Bag or Quilt:

A common image related to camping is zipping yourself up in a warm sleeping bag at night and enjoying a plush human cocoon. This is the insulation component and it is the core of your sleep system.

Traditionally, sleeping bags have been the sole choice for the adventurer in terms of insulation, but in the past few years, quilts have risen in popularity due to their lighter weight and targeted design. Both sleeping bags and quilts use either down or synthetic fill to insulate and achieve their EN/ISO temperature ratings. Picking the right fill type, the appropriate temperature rating, and the right size is how you arrive at a solid choice for component #1.

2. Sleeping Pad:

By inventing the self-inflating mattress in 1972 Therm-a-Rest did wonders for sleep systems long before anyone was calling them sleep systems. We dramatically improved outdoor sleep by creating a cushioned yet stable surface that provided much more insulation than the thin closed-cell foam pads of the day.

It has been nearly a half-century since the original Therm-a-Rest sleeping pad and let’s just say options have expanded. You can still sleep on closed-cell foam if that’s your style, our classic Z Lite™ SOL is a popular choice for that. You can also explore the myriad of self-inflating open-cell foam designs we offer. For those looking to limit pack size and weight, our NeoAir® series offers superior warmth-to-weight ratios.

It is important to take a close look at the R-value of any pad because this measures how much the pad insulates you from the ground; the higher the number the more insulation the pad provides. If finding your perfect sleeping pad feels daunting, we put together a handy sleeping pad finder to help guide you through the process.

3. Pillow:

Not much to explain here. Even if you have limited space in your pack, you can fit the Air Head™ Lite in your pocket on the way out the door. Gone are the days of waking up in the middle of the night with the zipper of your jacket pressed against your head, Therm-a-Rest has you covered with our lineup of backcountry-ready pillows.

4. Bonus Category: Clothing!

When measuring the EN/ISO temperature ratings of sleeping bags in our cold chamber, the sensor-loaded mannequin that tests the bag is wearing clothes. That’s right, it is wearing base layers, which means sleeping bag temperature ratings assume that a real user is wearing clothes. Base layers are critical to staying comfortable all day and all night.

A warm hat and fresh socks stave off frigid temps, while a dry base layer on top and bottom ensures that your sweat doesn’t leave you chilled.

How do Sleep Systems Work?

Being warm, or simply just the right temperature, is one part of thermal efficiency. This part is achieved by a system that provides the right amount of insulation and breathability. The other part is being the right temperature with minimum weight and packed size.

Dialing in your sleep system saves weight with more efficient gear choices. It saves energy by protecting you from harsh conditions to maximize the value of your body heat. It fulfills the number one rule of recreating outdoors: being prepared. The right gear provides the versatility to keep you comfortable in a wide range of conditions.

A Sleep System for Every Season

You may be wondering to yourself what your ideal sleep system is? That depends on your personal preferences and the nature of the adventures you are undertaking. The components of a sleep system should meet the demands of the sleeper and overcome the challenges of the natural environment.

It’s helpful to look at sleep systems as a function of the seasons. They give a general context for what your sleep system needs to accomplish. Stay warm in the winter. Be ventilated and cool in the summer. You get the idea. Below we put together examples of sleep systems built for general seasonal conditions.

Note: In the infographic at the end we show you how you can have one sleep system for all four seasons by having just four of the right pieces of equipment: A closed-cell foam pad, an insulated air pad, a sleeping bag, and a quilt.

Summer Sleep System:

A Summer Sleep System for mild summer nights give you the flexibility to pare down your kit and shed weight. A quilt offers customizable breathability and a NeoAir® Topo™ provides plenty of ground insulation and big comfort.

Fall Sleep System:

Dwindling temperatures demand more warmth, it’s time to break out your trusty down sleeping bag. Consider adding a closed-cell foam pad to boost your ground insulation.

Winter Sleep System:

Winter camping means it’s time to carry more weight and plan a bit harder to stay warm. Building a Winter Sleep Systems means layering your sleeping pads and adding a quilt over your sleeping bag. Done properly and it will be hard to leave your cozy tent in the morning.

Spring Sleep System:

Despite the promise of warming temperatures and thawing landscapes, the rain, snow and cold weather linger. You can both be prepared and lighten your load by simply leaving the extra pad at home.

Finding the Right Sleep System for You

No matter which season, the components of a sleep system should meet the demands of the sleeper and overcome the challenges of the natural environment.

For example, pretend you are a side sleeper in the Pacific Northwest, where it rains a considerable amount. Aim for roomier sleeping bag to accommodate side sleeping. Also, synthetic fill maintains its insulation performance when wet better than down. With the comfort-minded W.A.R.M. fit and water-resistant eraLoft™ synthetic fill, the Saros 20F/-6C is an ideal choice here.

Note: If the forecast is wet and all you have is a down bag, no problem. Just take extra precautions to keep your bag dry. With its incredible warmth-to-weight ratio down insulation is often the way to go.

Understanding your own brand of comfortable sleep is critical. If you sleep warm, perhaps you can save weight by utilizing a quilt. If you sleep on your side, look for pads that are at least 2 inches thick and sleeping bags that allow you generous range of movement. Those minimizing pack weight on a multi-day backpacking trip may select an entirely different system than those doing a quick and comfy overnighter in similar weather.

I have spent a lot of time at high altitudes in Colorado, where a balmy day in August can be a winter affair by sundown. Cloudless skies become harassing thunderstorms in the early afternoon. By carrying a system appropriate for a shoulder season, I feel confident I can end each day with the rest needed to take on the next.

We understand that no two sleepers are alike just as no two trips present the same challenges. The Therm-a-Rest line of sleeping pads and bags has been developed to meet individual needs across the globe. Whether you are pushing into the high alpine or crashing in the backyard with your kids, you can find your ideal sleep system at thermarest.com. Leave us a comment about your sleep system and how you could make it better!

Related Posts:

Infographic

Originally published December 16, 2019

3 Season Sleep System

The 3-season sleep system (3S) is a single sleeping bag system that is lighter in weight and provides increased environmental protection for all environments except extreme cold weather.

Background

OEF After Action Reports identify a compelling need to provide Marines with a sleeping bag that increases protection from environmental conditions while reducing weight and volume. OEF Marines carried only the modular patrol bag during mountain operations to decrease weight and volume but provided inadequate protection in the cold mountainous environment.

Features

The system includes a sleeping bag , bivy cover , waterproofing compression stuff sack at a total weight of 4.8 lbs as a 10% weight reduction with improved protection.

, , at a total weight of 4.8 lbs as a 10% weight reduction with improved protection. The system increases temperature by 15 degrees to protect at 20°F and above for wet and dry conditions for 4 hours uninterrupted sleep. Wearing clothing warming layers inside the bag provides protection down to 0°F.

The bivy cover is 18% lighter and provides improved comfort, protection and volume. It allows the Marine to be totally encapsulated under extreme weather conditions. The material is a microporous laminated membrane with highly water repellent exterior. An integrated flexible wire allows the bivy to stand off from the face and a bug proof screen window can be fully or partially opened.

A simple 2 strap compression stuff sack with automatic purge valve is waterproof and packs the system to fit into the bottom of the main ruck.

The system will be fielded to the CIFs and the current Modular Sleep System will be the Arctic Bag in the Cold Weather Gear Inventory.

Instruction

Logistics

TAMCN: C34212F

IDN: 10169C

sleeping bag: regular, which is brown on the inside: 8465-01-574-3998 long, which is green on the inside: 8465-01-574-4004 x-long: 8465-01-611-6040

bivy cover regular: 8465-01-574-4005 x-long: 8465-01-611-6047

compession stuff sack: 8465-01-574-4003

mesh storage bag: 8465-01-574-4494

system including sleeping bag, bivy cover, stuff sack, storage bag and user guide regular: 8465-01-573-4326 long: 8465-01-576-5222 [1]

Enhancement

Extreme Cold Weather Bag (ExCWB) [2] GL/PD-14-01, 17 April 2015 The ExCWB outer bag is used over the 3S bag and inside the bivy cover to provide comfortable climate at temperatures as low as -20 degrees. TAMCN: V00202F Regular/Long outer bag: 8465-01-608-7503 , PGC: 34043 X-Long outer bag: 8465-01-623-2346 , PGC: 36682 Compression stuff sack, 8465-01-608-7507 , PGC: 34044 Extreme Cold Weather Bag Visual Users Guide System including outer bag, stuff sack and user guide: 8465-01-607-2746

Gen II 3S bag has: [3] [4] three lacing loops with 3″ opening on the upper perimeter of the sleeping bag which are the attachment points for the bivy cover/outer bag, 3/8″ to 1/2″ eyelets at the end of the sleeping bag hood which provide an attachment point for proper positioning of the outer sleeping bag around the face when it is used over the 3S sleeping bag.

References

3S infopaper @PMICE [2008][2018]

http://www.tennierindustries.com/3-season-sleep-system.html

http://www.sbir.gov/sbirsearch/detail/295661

https://www.gore-tex.com/professional/military/3sss

https://www.performancedays.com/files/performancedays/content/exhibitors/documents/306/Climashield_military_brochure.pdf

M67854-06-I-3008: https://sam.gov/opp/75059e1af4c8858771404fa13e0dfbfe/view

W911QY-09-R-0041: https://sam.gov/opp/440d1e467d0bca4035279ad43c0e4488/view

https://sam.gov/opp/943c781733c3d5aad00d604c951545ca/view

Notes

USMC 3 Season Sleeping Bag System

The 3 Season Sleep System is lightweight, compactable and waterproof is available in coyote 497/498

BUY ONE NOW

The sleeping bag is made with a light weight compactable batting that provides a minimum 5.3 CLO rating, allowing the user to sleep comfortably in temperatures above 20°F. When used with the IBC, a ground insulator pad and proper clothing, intermittent use down to 5°F is achievable. This bag is also produced with an anti-microbial inner liner that helps to protect against the growth of microorganisms that can be dangerous to the user.

Improved Bivy Cover

When fully encapsulated in the IBC, the user is provided maximum environmental protection. The waterproof IBC is also made of a micro-porous (gas permeable) laminated fabric with sealed seams that allows the user to sleep fully encapsulated without respiratory distress in adverse conditions -40°F and above.

The Mesh Bag

This bag allows the components to be stored in an open environment with little compression and maximum ventilation.

Waterproof Autopurge Compression Stuff Sack (WSS)

One of the four components of the Three Season Sleep System (3S) The WSS provides waterproof storage of the Sleeping Bag and Bivy Cover and will fit into the bottom of the Improved Load bearing Equipment (ILBE) main pack. Waterproofing is achieved by the stuff sacks fabric, bag construction and closure design. The bag is constructed utilizing Radio Frequency fabrication, with no sewn seams for maximum waterproofing. The smooth internal and external surfaces facilitate packing. Volume reduction is accomplished by the shape, hands-free waterproof air purge value and two compression straps for end to end length reduction.

Component Specifications

The individual weights for the components of 3 Season Sleep System is as follows:

Sleeping Bag – size Regular 2.5 lbs.

Mesh Storage Bag 0.6 lbs. Bivy Cover – one size fits all 1.9 lbs.

Sleeping Bag – size Long 2.7 lbs.

Waterproof Auto purge Compression Stuff Sack .5 lbs.

Available in color Coyote 497/498

Available in regular and long sizes

Egress time less than 10 seconds

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USMC 3 Season Sleep System Black Cold Weather Outer Bag USA Made

USMC 3 Season Sleep System Black Cold Weather Outer Bag USA Made

30D ripstop nylon shell is coated with a membrane that is both breathable and water resistant. It uses a specially designed 2-layer offset construction to eliminate cold spots. Quality made zipper enclosure and cinch down hood adjusts for heat retention. Engineered to operate in temperatures 20F to 5F by itself while using a proper base layer.

Insulation is 100% Nylon fill & 100% Polyester. It also features reinforced retention loops to prevent clumping when shifting or rolling over. This high quality sleeping bag is the ideal sleeping bag for the whole family, an investment that will last many years, not a few seasons.

Size: Large/Regular accommodating users up to 6’ 5’’. Color: black exterior, clay grey interior. Condition: Factory new.

NSN 8465-01-608-7503

MADE IN USA.

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  • USMC Three Season Sleep System
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  • New Marine Corps 3 Season Sleep System
  • New Marine Corps Three Season Sleep System
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