The Emergency You Didn’t Plan For… Covered

A dead car. No heat. Help is hours away. Most people have nothing for a moment like this.

Mart Cobra built a better emergency solution.

This isn’t for when things go right.

It's for when they don't

A full-body emergency sleeping bag designed to trap your body heat when you need it most.

Keep Your Family Safe

The difference between a miserable night and a manageable one comes down to what you stashed in the glovebox last month.

Robert E.— Verified Buyer ⭐️⭐️⭐️⭐️⭐️

“Nice and long. And closed off at one end. The material is easy to work with. Not stiff or noisy. Best I have seen yet.”

Nobody plans to spend the night in their car. But every winter it happens — a pileup shuts down the highway, the power goes out, your battery dies at 11 PM. You're not in the wilderness. You're on I-35. And you're cold.

Cold is the real danger in most emergencies. A parked car with no engine drops to outside temperature within an hour. Help might be coming, but you still have to survive the wait. The Mart Cobra Emergency Sleeping Bag was designed for exactly this — not expeditions, not doomsday. A bad Tuesday night when the heat goes out.

The Material: NASA-developed Mylar reflects 90% of your body heat back to you. Unlike a blanket you have to hold closed, this is a sealed bag you climb into. Hands stay free.

The Build: 100% windproof, waterproof, taped seams. Under 5 oz, packs to the size of a soda can. Toss it in the glovebox and forget about it.

Keep Your Family Safe

Larry S.— Verified Buyer ⭐️⭐️⭐️⭐️⭐️ 

“I live in Texas and have a home in Montana. You never want to be stranded without cold weather protection. These can save your life in an emergency.”snapped my leg, my adrenaline started to die off and I started going into shock, my body was shutting down and going into survive mode. I started to shake uncontrollably from the cold, luckily we had one of these emergency sleeping bags and after they got this around me I was able to stabilize and we made it down, I can't believe how something so small can make such a HUGE difference in an emergency.

WHY A COBRA EMERGENCY SLEEPING BAG BELONGS IN YOUR KIT

When temperatures drop and help is hours away, the gear you packed is the only thing standing between you and hypothermia.

MART COBRA SLEEPING BAG UNPREPARED
Retains 90% body heat
Windproof sealed design
Hands stay free
Fits in glovebox
Visible rescue color
Multi-use (shelter, tarp, poncho)
Lightweight

Built for Emergencies...

Ready for More

Here's what sets it apart as an EXCEPTIONAL safeguard for your family.

  •  Durable Construction - Made of rugged Space-Tech, tear and puncture-resistant material that ensures long-lasting usage.
  • 100% Windproof and Waterproof- Keeps you warm and toasty in freezing cold temperatures and keeps you dry as a bone too. This replaces both fire and shelter in any survival situation. 
  • Ultra Lightweight Compact- This full size sleeping bag packs down to 4 inch * 2.5 inch bag and weighs only 4.2 ounces. Smaller than a soda can.
  • Expands to fit anyone - Unfolds to an incredible 7 feet long x 3 ft wide. This ensures the Cobra Emergency Sleeping Bag is large enough to fit anyone.
Keep Your Family Safe

FEATURES THAT PROTECT

Every detail engineered for when it matters most.
Traps your body heat when temperatures drop fast
Blocks wind, rain, and snow completely
Stays sealed around your body — no slipping or gaps
Small enough to keep in every vehicle

"Glad to have found these stop-gap safety items in case of severe trouble. Well worth the cost, a must item for our ‘Need-it bags."
-Ian R. — Verified Buyer ⭐️⭐️⭐️⭐️⭐️

These bags can save your life. Keep one in every car, every home, and for the people you care about.

If you never use it, that’s a good thing.
But when you need it, you’ll be glad it’s there.

Keep Your Family Safe
Pick Your Bundle

Keep One Everywhere You Might Need It

Save up to 65% • FREE shipping on 4-packs and above • 100% satisfaction guarantee • 30-day returns

Most customers don’t stop at one. They keep them in every vehicle and around the home.
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100% Satisfaction Guarantee — If you're not happy with your purchase, reach out to support@martcobra.com and we'll make it right. 30-day returns, no hassle. Mart Cobra is a U.S. family-run, veteran-operated company based in Austin, Texas.

Have a Question See our FAQ

Frequently Asked Questions

A: Yes, it is 100% waterproof.

Yes, it helps retain body heat and can serve as an emergency layer in cold weather conditions.

Mylar can be slightly crinkly, but it's not excessively loud compared to typical survival blankets.

Yes, the Mylar material offers excellent water resistance in rain or snow.

Yes, if handled with care, they are reusable for multiple emergency uses.

Yes, it provides a waterproof barrier if used as a temporary ground cover.

Each bag weighs less than 5 ounces, making it ideal for ultralight packing.

7 feet long by 3 feet wide

Yes, each sleeping bag includes a compact drawstring nylon storage bag.

Absolutely. It retains up to 90%of body heat.

We process and ship orders within 1–3 business days. Once your package leaves our facility, UPS, USPS, FedEx or DHL will take over delivery and we will provide tracking updates through email.

Each bag folds down to fit in your palm or side pocket — approximately the size of a soda can.

Yes, the dimensions (84" x 36") accommodate most adult body sizes comfortably.

30-Day Returns • Risk-Free
Keep Your Family Safe