Locate your height on the ruler below to see which size quilt and sheet/mattress we recommend for you. Ideally, you'll want to fall somewhere in the middle of the range. If you find yourself in the yellow, you'll probably want to size up for the most comfortable fit.Please note that the chart below is based on the average weight for each height. Also note that if you are an "active" or "wide" sleeper, you may want to consider sizing up to allow yourself more space to sleep naturally.
When in doubt, size up. Unlike mummy bags, there is no thermal disadvantage to a larger size Zenbivy Bed because it is always free to wrap snugly around you. Bigger is always more comfortable and just as warm. Questions? We're happy to help. Send us an email with your height, weight, and general sleep style and we'll help you find the right size for you.
The most comfortable camp mattress ever designed. Our 4-way stretch fabric allows this mattress to “flex” with your shape and movement, so the top feels softer and more supportive than other camp mattresses - even at firm air pressures. Our slow-deflation valve feature allows for customizable comfort. Simply lay on the mattress and push the "button" to slowly deflate to the desired firmness until it feels as close as possible to your bed at home. Horizontally cored foam eliminates the cold spots found on most vertically cored mattresses and delivers a full R-value 5 for EN-matched performance.
Long gone are the lightheaded days of blowing up your mattress by breath. The Flex Mattress includes our Inflation Dry Sack for easy inflation in under a minute. Simply snap the Inflation Dry Sack onto the mattress valve and push the air through.
Includes the Flex™ Mattress, Inflation Dry Sack, and repair kit
All-Season Warmth — Only mattresses with an R-value 5 or greater will meet the thermal performance of EN-rated sleeping bags. Most mattresses on the market today that are advertised as “3-season” do not provide the warmth required to match EN-rated bags. The Zenbivy Flex Mattress has an R-value of 5 for EN-matched performance and all-season warmth: no cold spots!
Silent Comfort — Fall asleep and stay asleep. The Flex Mattress's horizontally-cored foam insulation makes for a silent night at camp. The 4-way stretch fabric allows this mattress to “flex” with your shape and movement, so the top feels softer and more supportive than other camp mattresses - even at firm air pressures.
Fast Inflation — The included oversized Inflation Dry Sack is sized perfectly for the fastest inflation time and doubles as fully-welded storage to keep the mattress reliably dry when packed.
Smart Valve — The one-way reversible valve keeps air in while inflating and allows for customizable comfort with its slow-deflation "button”. When it's time to pack up, the entire valve pops out for instant, hassle-free deflation. Then pop the "deflation" valve side back in and the air stays out as you continue to roll.
R-value: 5 (Note: only mattresses with an R-value of 5 or greater will deliver full temperature rating performance from EN-rated sleeping bags)
Weight 20x72: 2 lb 2 oz (0.96 kg) 25x72: 2 lb 7 oz (1.10 kg) 25x77: 2 lb 11 oz (1.22 kg) 30x80: 3 lb 11 oz (1.67 kg)
Inflated Size 20x72: 20” x 72” x1.75” (51 x 183 x 4cm) 25x72: 25" x 72" x 1.75" (63 x 183 x 4cm) 25x77: 25” x 78” x 1.75” (63 x 198 x 4cm) 30x80: 30” x 78” x 1.75” (76 x 198 x 4cm)
Packed Size 20x72: 10” x 6” (25 x 15cm) 25x72: 13" x 6" (33 x 15cm) 25x77: 13” x 8” (33 x 20cm) 30x80: 15” x 8” (38 x 20cm)
Horizontally-cored foam cuts weight and eliminates the cold spots found on most vertically-cored mattresses and delivers a full R-value of 5 for EN-matched performance.
Supportive 4-way Stretch
Our 4-way stretch fabric allows this mattress to “flex” with your shape and movement, so the top feels softer and more supportive than other mattresses, even at firm air pressures.
The reversible valve keeps the air in while inflating and its slow-deflation "button" lets you dial in your exact comfort level. When it's time to pack up, the entire valve pops out for fast, hassle-free deflation. Snap it back in in "deflate" mode and the air stays out as you continue to roll.
Included Inflation Dry Sack
While the Flex™ Mattress will mostly self-inflate once you pop the valve open, it's helpful to have an Inflation Dry Sack to top it off to your desire comfort level. The Flex™ Mattress comes with a fully-welded Inflation Dry Sack for waterproof storage and easy manual inflation.
4.3Based on 20 Reviews
Write a ReviewAsk a Question
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!
It’s either bad seals or this thing is absolutely not meant to be rolled tight or stored for a long period of time. There is no noticeable puncture hole - and cannot hear a leak. But I’ll inflate to max capacity and within 5 minutes at room temperate it’s deflated down to 75% its original capacity. In cold weather it’s worse.
Agreed with the commenter below.
I was fortunate enough to be gifted this. The mat is simple in construction, but sturdy. I was surprised at how stiff I was able to make the bag, and it held up well to a full night's sleep without any leaking. A little bulky, but quality.