• Thermal Emergency Sleeping Bag for Survival: Reflects 90% of Body Heat | 3 Second Rapid Heating for Camping Hiking Backpacking big green bear
  • Thermal Emergency Sleeping Bag for Survival: Reflects 90% of Body Heat | 3 Second Rapid Heating for Camping Hiking Backpacking
  • A man wearing a large navy blue hiking backpack with an orange camping stove in its side pocket, shown in a forest setting. The image includes three circular inset callouts with text: 'Effortless Clip-On', 'Palm-Sized Design', and 'Soda Can Dimensions'.
  • Thermal Emergency Sleeping Bag for Survival: Reflects 90% of Body Heat | 3 Second Rapid Heating for Camping Hiking Backpacking
  • A man in a forest setting holds up an orange emergency bivvy sack with clear rain panels, with a bear visible in the background. Text at the top reads 'EMERGENCY BIVY SACK' and 'Waterproof & Windproof Rain Shelter for Outdoor Emergencies.
  • Thermal Emergency Sleeping Bag for Survival: Reflects 90% of Body Heat | 3 Second Rapid Heating for Camping Hiking Backpacking
  • Thermal Emergency Sleeping Bag for Survival: Reflects 90% of Body Heat | 3 Second Rapid Heating for Camping Hiking Backpacking
  • Thermal Emergency Sleeping Bag for Survival: Reflects 90% of Body Heat | 3 Second Rapid Heating for Camping Hiking Backpacking
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Biggreenbear.com

Thermal Emergency Sleeping Bag 2-Pack for Survival

Thermal Emergency Sleeping Bag 2-Pack for Survival

$15.99 USD
$15.99 USD
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Taxes included. Shipping calculated at checkout.

Ultimate 2-Person Emergency Bivy Sack: Waterproof Thermal Mylar Sleeping Bag
Never get caught unprepared in the backcountry. This ultra-lightweight, 2-person emergency bivy sack is engineered for critical survival situations, unexpected weather shifts, and roadside emergencies. Built from puncture-resistant, military-grade thermal mylar, it acts as a windproof and waterproof shield that reflects 90% of your body heat back to you in seconds. Whether you are an avid hiker, a backcountry camper, or a dedicated prepper building the ultimate bug-out bag, this compact survival sleeping bag ensures you and a partner stay warm, dry, and alive when conditions turn hazardous.
💡 Why This Emergency Bivy is Critical for Survival
Outdoor conditions can change in minutes. Hypothermia is a leading hazard for hikers and drivers stranded in sudden storms. Standard blankets easily blow away or get soaked, rendering them useless. This enclosed rectangular bivy sack seals out freezing wind, torrential rain, and heavy snow, trapping a pocket of warm air around your body. It provides an immediate, lifesaving barrier during power outages, vehicle breakdowns, or when you are forced to spend an unplanned night on the trail.
🛠️ Product Specifications & Key Features
Technical Specifications
  • Capacity: 2 Person occupancy (fits two adults comfortably)
  • Dimensions (Packed): Ultra-compact 2.7 x 5.3 inches
  • Shape: Spacious rectangular design
  • Material: Heavy-duty, tear-resistant thermal Mylar
  • Insulation: 90% heat-reflective Mylar fill
  • Season Rating: 4-Season / rated for below-freezing temperatures
  • Color: High-visibility safety orange (ideal for rescue signaling)
Key Features
  • 3-Second Rapid Heat Retention: Reflects body heat instantly to combat shock and shivering.
  • Weatherproof Shield: Fully waterproof and windproof seams protect against rain, damp ground, and snow.
  • Tear-Resistant Durability: Advanced material resists punctures from rocks, twigs, and rough terrain.
  • Lightweight & Foldable: Weighs next to nothing and packs down smaller than a soda can.
⚖️ How It Compares to Standard Emergency Blankets
Feature Our 2-Person Emergency Bivy Standard Space Blankets
Wind Protection 100% Sealed rectangular pocket Open edges allow wind inside
Capacity Fits 2 adults easily for shared body heat Built for 1 person only
Durability Heavy-duty, puncture-resistant Tears easily on branches/rocks
Moisture Control Waterproof outer shell Flaps in wind, lets rain seep in
Storage Includes durable stuff sack Difficult to refold after opening
📦 What’s in the Box?
  • 2 x Heavy-Duty 2-Person Thermal Mylar Emergency Sleeping Bags
  • 2 x Compact Ripstop Nylon Carry Bags with Drawstrings
🧼 Care & Maintenance Instructions
  1. Drying: Air-dry completely before refolding if exposed to moisture or sweat.
  2. Cleaning: Wipe the interior and exterior with a damp cloth; do not machine wash.
  3. Storage: Keep packed inside the included carry bag in a cool, dry place away from direct sunlight.
💬 What Our Customers Say
⭐⭐⭐⭐⭐ A Lifesaver in Utah!
"Got caught in an unexpected freezing rainstorm while hiking. My wife and I climbed into this bivy together. Within minutes, we stopped shivering. It saved our lives."
— Mark T.
⭐⭐⭐⭐⭐ Perfect for the Glove Box
"I bought a few sets of these for our family vehicles. They take up absolutely no space in the trunk. The material feels much thicker and tougher than cheap space blankets."
— Sarah K.
❓ Frequently Asked Questions
Can this bivy bag be reused?
Yes. Unlike cheap single-use emergency blankets, our bivy is made from thick, tear-resistant Mylar that can be carefully refolded and packed back into its carrying case for future use.
Does it fit two large adults?
Yes. The spacious rectangular shape is specifically designed to accommodate two adults. Sharing the bivy also helps pool body heat, raising the internal temperature even faster.
Is it completely waterproof?
Yes. The material is entirely impervious to water, protecting you from wet snow, heavy downpours, and damp ground conditions.
🛒 Order Today at Biggreenbear.com
Don't leave your safety to chance on your next outdoor adventure. Equip your backpack, vehicle, and emergency kit with the ultimate survival protection.
When you shop with Biggreenbear.com, you enjoy:
  • 🚚 Fast & Secure Shipping: Dispatched quickly from warehouses right here within the USA.
  • 🛡️ Risk-Free 30-Day Money-Back Guarantee: If you aren't completely satisfied with the quality, return it for a full refund—no questions asked.
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