Go Time Gear Life Bivy Emergency Sleeping Bag

Last updated date: October 25, 2020

DWYM Score

Go Time Gear Life Bivy Emergency Sleeping Bag

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We looked at the top Bivys and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Bivy you should buy.

Overall Take

The ultra-light emergency sleeping bag, which is constructed with an extra-thick, tear-resistant 26um mylar material, is suitable for repeated uses. A waterproof nylon sack protects the bag, which also comes with a 550-pound nylon core drag string that can used to secure or repair gear in a pinch and a 120-decibel emergency whistle. In our analysis of 16 expert reviews, the Go Time Gear Go Time Gear Life Bivy Emergency Sleeping Bag placed 1st when we looked at the top 6 products in the category. For the full ranking, see below.

Editor's Note October 25, 2020:
Checkout The Best Bivy for a detailed review of all the top bivys.

Expert Summarized Score
4 expert reviews
User Summarized Score
1,720 user reviews
Our Favorite Video Reviews
What experts liked
This sack comes with a nylon sack for storage, 120 decibel emergency whistle and ultralight. It also reflects 90% if body heat back to you.
- BestReviews
This emergency kit is both lightweight and puncture resistant. It's waterproof and warm.
- Dope Outdoors
It’s nice that they’re waterproof and that they act like a windbreaker
- The New York Times
This super lightweight bag is multi-purpose and inexpensive. It retains heat and remains durable for multiple uses.
- Outdoor Euphoria
What experts didn't like
Some customers mention the carrying sack ripping easily and is not breathable.
- BestReviews
When using the sleeping bag there is a lot of condensation.
- Dope Outdoors
the downside is that the experience is basically like sleeping in a trash bag, condensation and all. They’re also not durable—we ripped one the first time we got into it.
- The New York Times
This bivy may tear.
- Outdoor Euphoria

From The Manufacturer

This survival bivy sack is engineered for survival featuring a compact, lightweight design and highly durable materials. Remove it from the sack and unfold it to use as an improvised survival shelter tent or sleeping bag. Our survival bivvy sack is the only one with our patent pending Para-Synch Technology paracord drawstring utility rope and a 120-decibel emergency whistle.

Overall Product Rankings

Go Time Gear Life Bivy Emergency Sleeping Bag
1. Go Time Gear Life Bivy Emergency Sleeping Bag
Overall Score: 9.8
Expert Reviews: 4
Zmoon Emergency Bivy Sleeping Bag, 2-Pack
3. Zmoon Emergency Bivy Sleeping Bag, 2-Pack
Overall Score: 9.2
Expert Reviews: 2
Mezonn Emergency Sleeping Bag Survival Bivy Sack
5. Mezonn Emergency Sleeping Bag Survival Bivy Sack
Overall Score: 8.7
Expert Reviews: 2
Bearhard Emergency Sleeping Bag & Bivy Sack
6. Bearhard Emergency Sleeping Bag & Bivy Sack
Overall Score: 8.6
Expert Reviews: 0

An Overview On Bivys

Originally developed as one-person shelters to protect mountaineers and climbers from rain and snow during multi-day ascents, the bivouac sack — or bivy sack — now has a wider range of uses. A traditional bivy sack, made from a waterproof fabric, performs two basic functions: to increase the user’s body temperate and keep them dry. Bivies, reminiscent of an ultra-lightweight sleeping bag or extra-large rain jacket shell, have a head opening and come with features like head hole draw strings to seal out moisture, full-length zippers, factory-sealed seams for extra warmth and waterproofness.

The products, which are stored in a compact bag, are ideal for emergency preparedness, backcountry excursions, long-distance biking trips, train running and winter camping. The primitive shelters are ideal for sleeping in technical terrain, where ledges are too cramped for a tent, but can also be used as a poncho, blanket, sleeping bag liner and ground cover. Some bivy sacks are also equipped with a whistle and a nylon core drag string that can used to secure or repair gear, making those options great for emergency situations. Because bivies can be reused, easily stored and often weigh under 5 pounds, they’re convenient for travel and outdoor adventure.

What’s the difference between a bivy sack and a bivy shelter? The latter is a low-rise tent that includes mesh panels attached to the head opening or hoops the keep the fabric off your face (think: a fancy bivy sack).

DWYM Fun Fact

  • The definition of a bivouac is a temporary encampment under little or no shelter.
  • While tents date as far back as 40,000 B.C., the recreational tent wasn’t popularized in the United States until the first half of the 20th century, when Americans had more resources and leisure time to spend outdoors after the Industrial Revolution.

The Bivy Buying Guide

  • Depending on the product, bevy sacks are designed to help users retain up to 90 percent body heat.
  • If you’re a tent camper who wants to downsize to a no-fuss shelter, a bivy sack could be the answer; since they require no setup, pitching or breakdown, they’re great for adventurers who want to maximize their time with a fast overnight.
  • Bivies are great alternative to a tent in warmer temperatures (for example, above 50 degrees Fahrenheit).
  • If you plan to use your bivy sack for camping, increase your comfort by: placing a bottle filled with hot water in the core zone (your crotch or arm pit area) or extra warmth, use a sleeping pad underneath for extra cushion and pull the headhole drawstring snugly around your head to avoid breathing into the bivy and to seal out moisture.