HOW MANY PLACES — AND PEOPLE — WOULD YOU WANT PREPARED?
Emergencies rarely involve just one person, and they never wait for you to go get the kit. So the real question isn't whether to keep emergency blankets. It's how many, and where.
TWO PER PERSON, PER LOCATION. That's the rule we give people — one to wrap in, one to sit on, block wind with, or hand to someone else. Now add up yours:
- Each Vehicle - 4
- Home - 8
- Each Kit - 4
- Each Go Bag - 2
- Each Family Home - 4
- RV / Camper - 6
- Work / Office - 2
- Camping / Travel - 4
Four blankets each. That's 16 on top of your household's 24. Add the RV, the office and the camping gear and most lists run past 50.
CHOOSE MY COVERAGEPICK THE PACK THAT COVERS YOUR NUMBER.
Every pack from 40 up ships free. These don't expire — buying 80 once costs less than buying the 10-pack eight times.
IF IT HAPPENED TONIGHT...
- A winter storm knocks out the heat for three days — for everyone in the house, not just you.
- A breakdown leaves you and everyone in the car on a freezing roadside at 11pm.
- A wrong turn on a hike leaves your whole group waiting hours for rescuers to find them.
- You stop at an accident, and three people need covering — not one.
Emergencies don't schedule themselves, and they don't come one person at a time. Blankets only help where they already are — which is why you can't cover four places with one box.
“If Something Happened Tonight, Would You Have Enough?”
One emergency can involve your whole household at once. You already did the count — keep enough Mart Cobra Emergency Blankets ready to cover it, in every place you listed.
CHOOSE MY COVERAGE
DESIGNED TO MANAGE RADIANT HEAT — HOT OR COLD.
WHO ELSE WOULD YOU WANT PREPARED?
DO YOU NEED THE SLEEPING BAG TOO?
Same reflective Mylar. Different jobs. Most setups end up with both.
Frequently Asked Questions
Mart Cobra Emergency Blankets use reflective Mylar to help reduce radiant heat transfer. In cold conditions, the reflective surface can help reduce radiant body heat loss. The material also creates a lightweight windproof and waterproof barrier.
Our rule is two per person, per location. One to wrap in, and one to sit on, block wind with, or hand to someone else.
For a four-person household that works out to 8 at home, 4 in each vehicle, 4 in the home emergency kit and 2 in each go bag — about 24 before you've covered anyone outside the house. Add parents, grandparents, a kid away at college or an adult child at 4 each, and most households land past 40.
Whatever your number is, keep them spread across the places you'd actually need them rather than stacked in one kit. A blanket only helps where it already is.
The Mylar material is waterproof and windproof, allowing the blanket to serve as a lightweight barrier against wind and moisture.
It can also be used as an emergency weather shield, ground cover, or makeshift shelter when needed.
Both use reflective Mylar technology, but they're designed differently.
A Mart Cobra Emergency Blanket is an open, highly versatile sheet that can be wrapped around the body or used as a weather barrier, ground cover, signaling surface, emergency shade, or makeshift shelter.
A Mart Cobra Emergency Sleeping Bag creates an enclosed bivy-style space around the body, making it particularly useful when the primary goal is emergency warmth and protection from exposure.
Anywhere you might need one without warning: your home emergency supplies, each vehicle, go bags, backpacks, camping gear, an RV, and your workplace.
Space is rarely the limit. Each blanket folds smaller than a deck of cards — 40 fit in a shoebox, and a 200-pack fits in a carry-on — so keeping them in six or eight places takes less room than most people expect.
Store them unopened, dry, and out of direct sun, and check the packaging occasionally for damage.
Like most Mylar emergency gear, the material can make some crinkling noise when moved. The tradeoff is an extremely lightweight and compact design that's easy to keep ready for emergencies.
Orders are generally processed within 1–2 business days. Once shipped, you'll receive tracking by email. Delivery times vary by location and shipping method.
Priority Processing ($4.99 at checkout) moves your order to the front of the queue — it's processed first, usually the next business day. Packs of 40 and up ship free.
Yes. Reflective Mylar isn't only useful in the cold. When positioned appropriately between you and strong sunlight, the reflective surface can help reflect solar radiant heat away, making it useful for emergency shade and other radiant-heat protection.
Each Mart Cobra Emergency Blanket unfolds to approximately 82" × 52", providing full-body coverage for an adult.
Yet folded, each blanket is smaller than a deck of cards, making them easy to store in vehicles, emergency kits, go bags, backpacks, RVs, and more.
Yes, if the blanket is still in good condition after use, it can be carefully folded and reused. Mylar is extremely light, though, so it can be punctured or torn with rough handling — inspect it before relying on it again.
In practice, most don't come back. They get left with the person who needed them, stay taped over a window, or end up in someone else's kit. Plan on replacing the ones you use rather than counting on them.
Beyond wrapping around the body for warmth, the reflective Mylar works as a weather barrier, ground cover, signaling surface, emergency shade, or makeshift shelter.
Plenty of customers use them outside of emergencies too. The most common is window insulation — taped over drafty windows in winter, or over sun-facing windows in summer, where the reflective surface bounces solar heat away from the room. One customer reported interior temperatures dropping 5 to 10 degrees. Others use them as a windshield sun shade, under sleeping bags, or as ready-to-give kits for family, since each blanket is individually wrapped.
Keep in mind that a blanket doing one of these jobs isn't available for another — the one under you isn't over you.
No. Mylar emergency blankets don't have a shelf life the way food, batteries, or medicine do. Stored unopened in a cool, dry place and protected from damage, they stay ready for years.
That's worth knowing before you decide how many to buy: there's no benefit to buying a small pack now and more later. Later costs more per blanket, and nothing you buy today goes stale waiting.
Inspect the packaging periodically and replace any blankets that have been crushed, punctured, or torn.
Yes. The Mylar material can provide a temporary barrier against ground moisture when needed.
Returns may be requested within 30 days after the order is marked delivered. Returned products must be unused, unworn, in their original packaging, and accompanied by proof of purchase.
Before returning an order, contact support@martcobra.com to request a Return Authorization Number.
Customers are normally responsible for return shipping unless the return is caused by an incorrect or defective item. Mart Cobra does not charge a restocking fee.




