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
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.
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.
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.
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.
Hi Tyler, So sorry to hear about the issues with your Flex Mattress. We have sent you a follow-up email to help get this resolved. Thanks!
Kept me warm. But lost alot of air throughout the night
Sorry to hear this! Please send us an email at friends@zenbivy.com and we'll help get you back up and running.
Flimsy, cheaply made inflatable trash bags.
Hi David, We are sorry to hear you were disappointed with the Flex™ Mattress. If you would like to return it for refund, please let us know and we'll help you through the process. Thank you. -Kylie
Great sleep system that will allow me to be comfortable while camping with my scout troop or other adventures. Highly recommend
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.