Zenbivy Flex Mattress

Size Guide
  • Now includes welded dry sack/inflation sack!

    The most comfortable backcountry 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 backcountry mattress - even at firm air pressures. The valve keeps air in when you inflate, then push the button to slowly deflate to the desired firmness until it feels as close as possible to your bed at home. Flip the valve for deflation and the air stays out. 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.

Customer Reviews
5.0 Based on 4 Reviews
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Jill O.
Worth the weight

I camp a lot and have for 20 years and this is one of the best mattresses I've slept on. I tried the Light Mattress and this one and to me the Flex it's worth the additional weight and bulk as I prefer the firm support it gives. It is very comfortable, very warm and SILENT. Your tent mates will thank you. I sleep on my side and am a woman (hips) and it has enough support for me. I am 6' tall and got the 25x77 and it fits me fine.

Brian M.
my ultimate outdoor sleeping experience

I have purchased a XL bed & flex mattress. First I'm impressed by the idea of the bed system, but when they were delivered I was very happy with what I got. The quality, and comfort is immediately obvious. The fabric is very soft & comfy, and the down fill makes it that much more cozy. I'm 73'' tall & 180#. I got the XL because I flop around a lot at night, so really happy with the size. I don't know how it's made, but the flex mattress is unbelievably comfortable. As a side sleeper, even my bony hips stay cushioned on a hard surface. I'm very impressed with the entire package. It's such a great idea. I just ordered the full pillow because I'm sure I will be impressed with it too, and my ultimate outdoor sleeping experience will be complete. I'm very glad I bumped into a youtube video about these products.

Diana C.
This Princess is Very Happy!

Comfort while sleeping is everything for me on the trail! My Zenbivy bag is so wonderful that I thought I should consider their mat too. But I was concerned that I had only seen one review on this mat when considering buying it. I had tried a lot of other mats out and was not satisfied, so I decided to give it a try. I love it! When I role on my side, there is no hip pain. It's by far the most comfortable pad for me and worth the extra weight to carry. I highly recommend it!

Love this mat!

I was very skeptical that this would cut it as a comfy nights sleep, I had very low expectations. It blew me away, pun intended. The self-inflation came up nicely and I added a few breaths to see the difference. The four way stretch top fabric is a game changer for me. I’ve suffered through third world train bunks, firm foam mats, and also had the best pillow top mattress nights rest- this was barely different than my comfy mattress at home.

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