A critical lightweight layer for your survival kit. You might think you’ll never need one, but an emergency sleeping bag is pure peace of mind. It’s the thing you hope to never use but are incredibly grateful to have. It packs down tiny and weighs almost nothing, which makes it a no-brainer for your car, pack, or closet.
We tested several top models to see which ones truly deliver when the temperature drops. Because let’s face it, in a real pinch, you need reliable warmth fast—not a flimsy sheet of plastic that tears. Here’s what we found about there durability and heat retention.
Product Comparison Table: 10 Best Emergency Sleeping Bag
| Image | Why We Like This Product | Editor’s Rating | |
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NovaMedic Emergency Sleeping Bag 5 Pack – 84″x36″ Thermal…
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9.5 |
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Emergency Sleeping Bag 1 Pack | for Survival Gear…
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9.3 |
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Sierra Madre Emergency Sleeping Bag – Ultralight, Waterproof Mylar…
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9.1 |
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Leberna Emergency Sleeping Bag Survival Bag 2 Pack |…
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8.9 |
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Zmoon Emergency Sleeping Bag Survival Bag, Portable Waterproof Thermal…
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8.7 |
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Zmoon Emergency Sleeping Bag Survival Bag, Portable Waterproof Thermal…
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8.5 |
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Zmoon Emergency Sleeping Bag Survival Bag, Portable Waterproof Thermal…
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8.3 |
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Emergency Sleeping Bag Survival Bag, Cymuber Portable Waterproof Thermal…
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8.1 |
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MODERN NEEDS Emergency Sleeping Bag Survival – Thermal Blanket…
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7.9 |
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Don’t Die in The Woods – Emergency Sleeping Bag…
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7.7 |
Read Review |
Quick Review For Top 10 Emergency Sleeping Bag
NovaMedic Emergency Sleeping Bag 5 Pack – 84"x36" Thermal Mylar Survival Bivy Sack – Waterproof, Lightweight & Compact Emergency Blanket for Camping, Hiking, Outdoor Survival & Travel
The NovaMedic Emergency Sleeping Bag 5 Pack is a practical and reliable solution for staying warm and dry in unexpected situations. These aren’t your everyday blankets; they are specialized thermal bivy sacks made from a durable Mylar material. Their primary job is to reflect your body heat back to you, helping to retain up to 90% of it. This is crucial if you find yourself in cold, wet, or windy conditions where hypothermia becomes a real risk.
Having one of these in your kit provides a critical layer of emergency thermal protection when you need it most.
Each bag is designed to be fully waterproof and windproof. The tough Mylar construction resists tears and moisture, creating a reliable barrier between you and the elements. Whether you’re caught in a sudden downpour during a hike, dealing with a roadside car issue, or need extra insulation in a makeshift shelter, this bag will help keep you dry and warm.
It’s a versatile piece of gear that functions as both a sleeping bag liner and a standalone emergency bivy.
One of the best features is its portability. Despite each bag’s generous size of 84 by 36 inches—large enough to cover most adults comfortably—they fold down into an incredibly compact pouch. You can easily fit one into the smallest corner of your backpack, your car’s glove compartment, or a emergency go-bag without adding noticeable weight or bulk.
Emergency Sleeping Bag 1 Pack | for Survival Gear and Supplies Life Bivy Sack Waterproof Mylar Emergency Blankets for Survival Kit Car Camping Gear Hiking Tac Bivvy Go Bag Supplies Sleep Sacks Shelter
The Emergency Sleeping Bag 1 Pack is a compact, essential piece of gear designed for serious preparedness. It’s not your typical camping sleeping bag; it’s a purpose-built survival tool. This single bivy sack is crafted from durable, waterproof Mylar material that reflects your body heat back to you, providing critical warmth in emergency situations. It’s a core component for any kit where space and weight are at a premium, but reliability cannot be compromised.
Think of this as your all-weather, full-body emergency shelter. Sized at 84 by 36 inches, it’s roomy enough to accommodate most adults and children, offering complete coverage from head to toe. You can use it as a conventional sleeping bag by climbing inside, or drape it over yourself as a large bivy blanket.
Its primary job is to retain up to 90% of your radiated body heat, which is vital in preventing hypothermia during unexpected cold exposure, from a stalled car in a blizzard to a sudden storm on the trail. One of it’s most significant features is its ultralight and packable design. Despite being strong enough to serve as a blizzard survival bag, the entire unit folds down into a tiny sack that weighs almost nothing.
Sierra Madre Emergency Sleeping Bag – Ultralight, Waterproof Mylar Thermal Bivy Sack Tent for Hiking, Bug-Out Bags, Survival Kits – Emergency Survival Space Blanket for Heat Retention 1 Pack
The Sierra Madre Emergency Sleeping Bag is a piece of gear designed for one primary purpose: to keep you warm and dry in a unexpected situation. It’s not your average camping sleeping bag, but a specialized thermal bivy sack that acts as a critical barrier between you and the elements. When the weather turns bad or an accident leaves you stranded, this compact tool becomes a vital piece of survival equipment.
Its core function is heat retention.
The bag is constructed from a durable, metallized Mylar material that reflects a significant 90% of your body heat back towards you. This is crucial in cold, wet, or windy conditions where hypothermia is a real risk. Think of it as a wearable emergency space blanket, but with a much more practical and effective design that fully encloses your body.
It’s windproof and waterproof, shielding you from rain, snow, and chilling breezes that can quickly sap your warmth.
One of its biggest advantages is its portability. Weighing only about six ounces, it packs down incredibly small into its included stuff sack. You can tuck it into the corner of your hiking backpack, your car’s glove compartment, your boat, or your home emergency kit without noticing the weight or bulk.
Leberna Emergency Sleeping Bag Survival Bag 2 Pack | Survival Bivy Sack | Portable Blanket Survival Gear Bivvy Thermal Sleeping Bag Camping
The Leberna Emergency Sleeping Bag Survival Bag 2 Pack is a fundamental piece of gear designed for serious preparedness. In an emergency situation, losing body heat is a primary risk. This product is built directly to adress that threat. Its made from a durable, insulating Mylar material, originally developed by NASA for space missions. This technology works by reflecting back up to 90% of your own body heat, creating a critical thermal barrier against the cold.
Its completely waterproof and windproof, offering a simple but effective shelter in harsh conditions. A key feature is its substantial size. Each bag measures 84 inches long and 36 inches wide, providing ample room for most adults. An upgraded, 21-inch wide head cover allows you to fully enclose yourself, ensuring your whole body stays protected from the elements. For visibility, a bright black strip runs along the edge, making you easier to spot if you need rescue.
While its core purpose is emergency survival, its also a smart, lightweight addition to your camping, hiking, or sporting event kit for unexpected cold snaps. Portability is where this kit truly shines. You receive two full-size sleeping bags in this pack. Each one compresses down into an incredibly compact carry sack, measuring just about 7 by 3 inches and weighing only 3 ounces.
Zmoon Emergency Sleeping Bag Survival Bag, Portable Waterproof Thermal Bivy Sacks,Bivvy Bags,Camping Mylar Sleeping Bag Survival Gear Emergency Blankets Survival Shelter (Orange Pack of 4)
The Zmoon Emergency Sleeping Bag Survival Bag (Orange Pack of 4) is a fundamental piece of gear designed for unexpected situations. Its core purpose is to provide reliable, portable warmth and shelter when you need it most, whether you planned for an overnight stay or not.
It’s constructed from a durable mylar foil material. This isn’t just shiny plastic; it’s a engineered thermal barrier that reflects back an impressive 95% of your body heat directly to you.
This reflection is key to maintaining your core temperature in harsh conditions. The material is also inherently windproof and waterproof, offering a protective layer against rain, snow, and chilling winds. Its tear-resistant nature means it can handle rough use, providing a dependable shield from the elements.
Each bag unfolds to a generous 78 inches long by 47 inches wide.
This size comfortably accommodates most adults and can easily wrap around a child, ensuring a effective heat-reflecting cocoon. Its large size also allows for versatility in use—you can zip it up fully as a sleeping bag, use it as an oversized bivy sack over your existing bag for extra warmth, or simply drape it as an emergency blanket.
Zmoon Emergency Sleeping Bag Survival Bag, Portable Waterproof Thermal Bivy Sacks,Bivvy Bags,Camping Mylar Sleeping Bag Survival Gear Emergency Blankets Survival Shelter (Orange Pack of 2)
The Zmoon Emergency Sleeping Bag Survival Bag is a compact, two-pack of thermal bivy sacks designed for critical warmth and shelter in unexpected situations. These orange bags are a practical piece of gear focused on safety and versatility for anyone who spends time outdoors or wants to be prepared for emergencies.
At the core of these bags is a durable MYLAR FOIL MATERIAL. This isn’t your everyday blanket; it’s engineered to reflect a significant 95% of your body heat back to you.
This heat reflection is key to maintaining your core temperature in harsh conditions. The material is also windproof and waterproof, offering a protective layer against rain, snow, and chilling winds. Its tear-resistant nature means it can handle rough use when you need it most, providing a reliable barrier from the elements.
Each bag opens to a generous 78 inches by 47 inches. This size is ample to fit most adults comfortably, allowing you to fully enclose yourself.
You can use it as a traditional sleeping bag by climbing inside, or simply drape it over you as a large emergency bivy blanket. The design provides a crucial layer of insulation even without a tent, making it a smart backup for sudden weather changes or an unexpected night out.
One of the biggest advantages is its portability. When not in use, each bag packs down into a very small, lightweight pouch.
Zmoon Emergency Sleeping Bag Survival Bag, Portable Waterproof Thermal Bivy Sacks,Bivvy Bags,Camping Mylar Sleeping Bag Survival Gear Emergency Blankets Survival Shelter (Green Pack of 2)
The Zmoon Emergency Sleeping Bag Survival Bag (Green Pack of 2) is a fundamental piece of gear designed for reliability in unpredictable situations. At its core, this product is about providing a critical layer of safety and warmth when you need it most, without the bulk of traditional equipment. Its primary material is a durable mylar foil. This isn’t just shiny plastic; it’s engineered to reflect back a significant 95% of your own body heat directly to you.
This technology is what makes it effective in extreme cold, blizzards, or wet conditions. The material is also windproof and waterproof, creating a barrier against rain, snow, and chilling winds while remaining breathable to manage condensation. It’s built with tear and puncture resistance, so you can trust it in rough environments. Each bag opens to a generous 78 inches long by 47 inches wide.
This size comfortably accommodates most adults and can easily fit children, providing a full enclosure. You can use it as a standalone sleeping bag, a bivy sack over your existing bag for extra warmth, or simply as an oversized emergency blanket. Its design means it can function as an immediate shelter, even without a tent, offering a vital defense against the elements. A major advantage is its portability. Each thermal sleeping bag packs down into an incredibly small and lightweight pouch.
Emergency Sleeping Bag Survival Bag, Cymuber Portable Waterproof Thermal Bivy Sacks Tac Bivvy Bags,Camping Mylar Sleeping Bag Survival Gear Emergency Blankets Survival Shelter
The Cymuber Portable Emergency Sleeping Bag is a core piece of gear designed for serious preparedness. It’s not just a blanket; it’s a compact survival shelter built to retain body heat in critical situations. Whether your planned camping trip takes a cold turn or you need reliable backup in your vehicle for unexpected emergencies, this bivy sack is engineered to provide a vital layer of protection against the elements.
Its primary advantage is the specialized Mylar foil material.
This isn’t ordinary plastic. The material is windproof and completely waterproof, creating a barrier between you and rain, snow, or damp ground. More importantly, it’s highly reflective, designed to bounce your radiant body heat back to you.
This reflective property is key to preventing hypothermia in extreme cold, making it a practical tool for blizzard conditions or sudden temperature drops where maintaining core warmth is essential.
Weighing next to nothing and packing down incredibly small, it’s the kind of gear you can actually afford to carry always. It collapses to fit in a jacket pocket or the corner of any backpack, meaning there’s no excuse to leave it behind.
MODERN NEEDS Emergency Sleeping Bag Survival – Thermal Blanket & Bivy Sack | Emergency Bivy & Survival Blanket | Outdoor Sleeping Bag & Hiking Sleeping Bag | Sleeping Bags for Adults | 1 Pack
The MODERN NEEDS Emergency Sleeping Bag Survival is a compact, multi-use piece of gear designed for serious preparedness. It’s not a replacement for your regular camping sleeping bag, but rather a critical backup for when things don’t go as planned. Think of it as an all-in-one thermal blanket, bivy sack, and survival shelter that packs down incredibly small. Its core purpose is to provide reliable protection from the elements in a sudden emergency.
The material is a tough, tear-resistant polyethylene with sealed seams, making it weatherproof and built to handle rough use. This durability means you can trust it in wind, rain, or snow as a immediate barrier, keeping you drier and more shielded than a standard foil blanket might. A key feature is its reflective insulation. This technology is designed to reflect your body heat back to you, helping to retain up to 90% of that precious warmth.
In a cold-weather survival scenario, whether your car breaks down on a remote road or you’re delayed on a hike, this heat retention is vital for preventing hypothermia. It unfolds into a full-sized bag that offers complete body coverage, which is far more effective than a small square blanket. Perhaps its biggest advantage is it’s incredible portability. Packed, it’s smaller than a soda can and lighter than a deck of cards. This tiny size means there’s no excuse not to have one with you.
Don’t Die in The Woods – Emergency Sleeping Bag with Hood – Made with Extra Thick Thermal Mylar – 10 Essentials Hiking Camping Blanket, Survival Gear Tactical Car Disaster First Aid Kits (Orange)
The Don’t Die In The Woods Emergency Sleeping Bag with Hood is a critical piece of gear designed for one primary purpose: to keep you warm and dry in a survival situation. It’s not your everyday sleeping bag, but a compact, reusable thermal bivy that acts as a vital safety net. Whether your hike goes longer than planned, your car breaks down in a remote area, or weather turns unexpectedly harsh, having this in your pack provides a significant layer of protection against hypothermia.
Its core is made from an extra-thick, tear-resistant HeatFlex mylar, which is notably more durable and flexible than standard space blanket material. This construction reflects up to 90% of your body heat back to you, a key mechanism for staying warm. The bag features reinforced tape seams for strength and a fully integrated hood—a design that addresses the fact you can lose considerable heat through your head. This hood is a distinctive feature that sets it apart from basic emergency blankets.
Weighing only about 7 ounces and packing down to a very small size, it adds negligible weight to your load. You can easily stash one in your car’s glove box, your daypack, your boat, or your primary camping kit. Because it’s waterproof, it also serves as a moisture barrier. You can use it directly on the ground, wrap it around you, or—very effectively—layer it *inside* your existing sleeping bag to dramatically boost that bag’s temperature rating and protect it from condensation.
Emergency Sleeping Bag Buying Guide
An emergency sleeping bag is a compact, critical survival tool. It’s not for glamorous camping trips; it’s the insurance policy you hope to never use. When you’re stranded, injured, or facing plummeting temperatures, this simple piece of gear can make the difference between a rough night and a life-threatening situation. Choosing the right one means thinking about the worst-case scenarios you might realistically face.
Material and Insulation
What’s it made of? Most emergency bags use a Mylar (space blanket) material that reflects your body heat back to you. They’re incredibly lightweight and pack tiny. For more durability and warmth in damp conditions, look for a model with a laminated fabric or a synthetic insulated lining. These offer better protection if you’ll be in contact with wet ground or need it for more than one night.
Size and Packed Dimensions
If it’s too bulky, you’ll leave it behind. The whole point is that it fits effortlessly in your car’s glove box, daypack, or emergency kit. Check the packed size—many compress down to the size of a soda can. Also, ensure the bag is long and wide enough to fit you while wearing bulky layers. A cramped bag won’t trap heat effectively.
Durability and Reusability
Are you buying a single-use item or a more robust option? Standard Mylar bags are fragile and can tear easily, often meant for one crisis. If you want something for repeated practice drills or as a reliable backup for your outdoor hobbies, invest in a tear-resistant, reusable model. It might cost a bit more, but it won’t let you down when you need it most.
Additional Survival Features
Some bags go beyond just a sack. Integrated features can be a huge bonus. Look for a bright color or reflective strips for visibility to rescuers. A waterproof stuff sack adds protection. A few even include a whistle or a small survival guide printed right on the bag. These extras add very little weight but significant utility in a real emergency.
Frequently Asked Questions About Emergency Sleeping Bag
What is an emergency sleeping bag?
It’s a lightweight, compact bag designed to retain body heat in a survival situation. You use it when you need emergency shelter or extra warmth, often during hiking, in a car kit, or after a natural disaster.
How is it different from a regular sleeping bag?
Emergency bags are made from materials like Mylar, which reflects heat. They are not as durable or comfortable for regular camping. Their main job is too provide a critical warmth boost in a pinch, and they pack down very small.
Can you reuse an emergency sleeping bag?
Yes, but carefully. The material can tear easily. If it stays dry and undamaged, you can fold it and reuse it a few times. Always check for rips before relying on it again.
What temperature are they good for?
Most standard bags are rated for survival use above freezing, around 32°F to 50°F (0°C to 10°C). They retain the heat your body produces, so their effectiveness depends on your clothing and the conditions.
Are they waterproof?
They are water-resistant and will block wind and light moisture. But they are not fully waterproof for heavy rain. The material can also lose its effectiveness if it gets wet on the inside from condensation.
What should I look for when buying one?
Look for a durable material, a good size to fit you, and a clear temperature rating. Extra features might include a stuff sack or a brighter color for visibility. Consider how many you need for your family or group.
Where should I keep my emergency sleeping bag?
Keep it anywhere you might need it fast. Common spots are your car’s glove box, your hiking backpack, a home emergency kit, or your boat. Just make sure it’s easy to grab in a hurry.
Can it really save your life?
Absolutely. In a cold weather emergency, hypothermia is a major risk. These bags are a simple, effective tool to help maintain your core body temperature until help arrives or you reach safety.
Our Final Recommendation
A vital, compact layer of safety and survival. It’s the one piece of gear you hope to never truly need, but will be profoundly grateful you have if the situation turns. Stashing one in your car, backpack, or kit takes up almost no room. It gives you a simple, effective tool to retain body heat and signal for help. That’s a lot of peace of mind for such a small package.
Don’t overthink this. For the cost and size, the value is clear. Make the choice to include an emergency sleeping bag in your plans. It’s a straightforward step that bridges the gap between a minor inconvenience and a serious, cold-weather risk. You’re not just packing a sheet of plastic; your packing a critical backup plan for you and your loved ones.