🌙 For the Nights You Didn't Plan For

You don't need to be a survivalist to end up stuck somewhere cold. A dead battery at 11 pm. A highway closure that turns a two-hour drive into six. A power outage that stretches past midnight with no heat and no ETA.

This isn't about prepping for the end of the world. It's about getting through the night. And when that happens, the difference between a miserable night and a manageable one comes down to what you stashed in the glovebox last month and forgot about.

The Mart Cobra Emergency Sleeping Bag is built for exactly these moments — compact enough to forget about until you need it, durable enough to actually work when you do. Sealed, full-body protection that fits in your palm and reflects up to 90% of your body heat back to you. Because emergencies don't wait for you to be prepared. But you can be anyway.

🧯 Key Features

• Full-Body Coverage — 84" × 36" sealed sleeping bag design wraps you head to toe. Not just a drape like a standard space blanket.
• Up to 90% Body Heat Retention — Aluminized interior reflects your own body heat back at you — the most efficient way to stay warm when there's no external heat source.
• Compact & Lightweight — Under 5 oz. Packs down small enough to fit in a glovebox, console, or 72-hour kit.
• Reusable — Built to last. Inspect after each use, fold back into the drawstring pouch, store for the next emergency.
• Windproof & Water-Resistant — Sealed Mylar construction blocks wind and rain — critical when stranded outdoors.
• Universal Fit — Adult-sized and roomy enough for layered clothing.

📐 Specs

• Size: 84" × 36"
• Weight: Under 5 oz
• Material: Aluminized Mylar
• Heat Retention: Up to 90% body heat reflection
• Storage: Includes drawstring pouch
• Use: Reusable — inspect before storage and redeploy for future emergencies

🚗 When You'll Use It

• Car emergencies — Stranded after a breakdown, accident, or stuck in a snowstorm. Stays in your glovebox until you need it.
• Power outages — Especially overnight outages in winter, when your home's heat is gone but you're not going anywhere.
• Evacuations and shelters — Lightweight enough to grab on the way out the door. Sized to take up almost no space in a go-bag.
• Camping and hiking — Emergency backup if your real sleeping bag gets wet, lost, or proves inadequate.
• Disaster preparedness — Earthquake kits, hurricane prep, 72-hour bags, bug-out kits.

🆚 Emergency Sleeping Bag vs. Common Alternatives

When you're stuck somewhere cold, what you reach for matters. Here's how the Mart Cobra Emergency Sleeping Bag compares to the alternatives most people consider:

Emergency Sleeping Bag vs. Standard Mylar Space Blanket

A standard space blanket is a flat sheet you drape over yourself. It works, but it leaves gaps that let warm air escape, slides off as you move, and is harder to wrap around your full body without help.

The Mart Cobra Emergency Sleeping Bag is sealed on three sides into a full sleeping bag shape. You climb in and the warmth stays trapped. No gaps, no holding it in place, no losing heat through every movement.

Emergency Sleeping Bag vs. Traditional Camping Sleeping Bag

A traditional sleeping bag works great when you have the space to store it. But most people do not keep a 4-pound camping bag in the trunk of every car for the off-chance of a roadside emergency.

The Mart Cobra Emergency Sleeping Bag weighs under 5 oz and packs to roughly the size of a deck of cards. It is the bag you actually have with you when you need one — because you forgot it was there until the moment you didn't.

Emergency Sleeping Bag vs. Wool or Regular Blanket

A wool blanket takes up significant space, gets heavy when wet, does not block wind, and does not reflect body heat — it just slows heat loss.

The Mart Cobra Emergency Sleeping Bag actively reflects up to 90% of your body heat back, blocks wind and water, and packs down to a fraction of the size. Purpose-built for the job a regular blanket only half-does.

Emergency Sleeping Bag vs. Running Your Car's Heater All Night

Running the engine for warmth burns fuel you may need to get home, and carbon monoxide poisoning is a serious risk for stranded drivers when exhaust is blocked by snow. Most safety guides recommend running the engine only for 10 minutes per hour — leaving 50 minutes of every hour with no heat source.

The Mart Cobra Emergency Sleeping Bag keeps you warm during the 50 minutes the engine is off — turning a dangerous situation into a survivable one without burning fuel or risking exposure to fumes.

🚨 How to Use Your Emergency Sleeping Bag

1. Remove — Pull the bag from its drawstring pouch and unfold completely.
2. Open — Identify the open end and shake the bag to fully expand it.
3. Climb In — Step into the bag and pull it up around you. Layer clothing underneath for additional warmth.
4. Seal — Tuck the open edge under your head and shoulders to lock in heat. Keep your nose and mouth outside to prevent moisture buildup inside the bag.
5. Store — After use, allow to dry fully, inspect for tears or holes, fold or roll, and return to the drawstring pouch for the next emergency.

📦 Sizes & Bundles

Pick the bundle that matches your preparedness goals:

• 1-Pack — Single bag for one vehicle or one person.
• 4-Pack — One per vehicle in a typical household. About $15 per bag.
• 8-Pack — One per family member plus spares for guests or extended kits. About $10 per bag.
• 12-Pack — Whole-family preparedness, second-home coverage, or extended-family kits. About $8 per bag.
• 20-Pack — Best per-unit price. Ideal for businesses, churches, schools, scout troops, community emergency response groups, and large families. Just under $7 per bag.

🛒 Build a Complete Emergency Kit

The Mart Cobra Emergency Sleeping Bag pairs naturally with these companion products:

• Mart Cobra Mylar Emergency Blankets — Smaller, even more compact backup. Keep one in every bag, glovebox, and drawer.
• Break & Escape Window Breaker & Seat Belt Cutter — If your car emergency turns into a vehicle escape situation, this is the tool you need within arm's reach.

Explore the full Survival Gear collection for everything you need for car, home, and outdoor emergencies.

✅ Why Choose Mart Cobra

Mart Cobra is a veteran-operated, family-owned business with real-world experience in preparedness and disaster relief. Our emergency gear is trusted by thousands of U.S. households who want to be ready without going full doomsday-prepper.

We ship fast from our U.S. warehouse and back every order with risk-free returns. Stash one in your glovebox today — and forget about it until the night you don't.