The sheet is sized to fit your mattress and the quilt is sized to fit you.
Locate your height on the ruler below to see which size quilt and sheet/mattress we recommend. 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.The chart below is based on the average weight for each height. Also note that if you are an "active" or "wide" sleeper (i.e. someone that moves around a lot), 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 because it is always free to wrap snuggly around you.Bigger is always more comfortable and just as warm.
Questions? We're happy to help. Let us know your height, weight, and general sleep style and we'll help you find the right size for you.
The sheet is sized to fit your mattress, whether it's one of ours or your current mattress. Our sheets fit both rectangular and tapered mattresses.Note on 4-inch mattresses:our sheets will fit 4-inch thick mattresses withroundedsides, but they do not work on 3D vertical side wall mattresses that are 4" or greater.
DESIGN UPDATE: We are currently in the process of transitioning our fitted sheets over to an adjustable design to accommodate different mattress lengths. These sheets will be named 20", 25", and 30".
20" sheets will fit mattresses up to 20" x 72" x 3.5" 25" sheets will fit mattresses up to 26" x 78" x 3.5" (including 25x72 mattresses!) 30" sheets will fit mattresses up to 30" x 80" x 3.5"
See measurements for max shoulder/hip/foot circumference of each size Bed, along with the dimensions of just the quilt itself.
Dry Sack Sizing
Find your Bed on the image below and match it to its recommended Dry Sack size. Don't worry, with the recommended size there will still be room to throw in your Zenbivy pillow and even a down jacket.You can expect your Bed to compress down to abouthalfthe size of its recommended Dry Sack. (Ex: 7L compresses down to 3-4L, 10L down to 5L, etc)
The Flex™ 3D Mattress is the ultimate ultra-comfortable basecamp mattress. It features the same 4-way stretch knit top that makes our original Flex™ Mattress so supportive and soft. The 3D shape makes it feel just like your home mattress, with a completely flat top and vertical side walls, packing 3 inches of self-inflating horizontally-cored foam to give you the most comfortable night's sleep possible.
If you're a backpacker looking to upgrade their mattress for car camping trips or if you're simply looking for maximum comfort at camp, the Flex™ 3D Mattress is an ultra-comfortable and luxurious addition to your gear closet. Available in 25x77, 30x80, and a double-wide 50x77.
Includes the Flex™ 3D Mattress, storage/inflation sack, and repair kit
3D Shape — The completely flat top and vertical side wall make the Flex™ 3D Mattress feel like a real mattress. The top is usable from edge to edge and it cradles you like your mattress at home.
4-Way Stretch Top — 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.
Horizontally-Cored Foam Insulation — Horizontally-cored foam eliminates the cold spots found on most vertically-cored mattresses and delivers an R-value of 7.
Fast Inflation — The included inflation sack is sized perfectly for the fastest inflation time and doubles as storage for the mattress.
Reversible 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.
Weight 25x77: 4 lb 2 oz (1.87 kg) 30x80: 4 lb 11 oz (2.13 kg) 50x77: 7 lb 11 oz (3.49 kg)
Inflated Size 25x77: 26" x 78" x 3" (66 x 198 x 8cm) 30x80: 30" x 78" x 3" (76 x 198 x 8cm) 50x77: 52" x 78" x 3" (132 x 198 x 8cm)
Packed Size 25x77: 13" x 8" (33 x 20cm) 30x80: 15" x 8" (38 x 20cm) 50x77: 26" x 8" (66 x 20cm)
Why is a 3D mattress superior? The completely flat top and vertical side wall make the Flex™ 3D Mattress feel like a real mattress. The top is usable from edge to edge and it cradles you like your mattress at home.
A 3-inch thick mattress is the perfect height. It provides enough thickness for the mattress to feel bottomless in most every sleep position and it doesn't take up too much head room in your tent or car. It works everywhere! Even in smaller tents.
Supportive 4-way Stretch
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.
Sorry to hear you're not happy with your purchase! We would love to help find a solution. If we can help with anything please send us an email at email@example.com
-The Zenbivy Team
I bought this for back country also. This is so amazing! I have two degenerative disc’s in my lumbar so it was a must to buy this bed so I was comfortable and not hurting when I wake up in the morning after sleeping on the ground. I will be buying another one for my wife when I can.
I guess you can’t get comfort without bulk & weight?
This mattress is super comfortable. Yes it’s also quiet and non slip. Yes it self inflates like a boss. But it’s so bulky when packed down. Not to mention heavy. It’s really only suitable for cramping with a vehicle. We have been using it as a spare bed for when our son has friends stay over. The straps and storage/inflation bag is the usual Zenbivy high quality. It’s hard to tell from the website how heavy and bulky something is. We would not have purchased this if we had handled it in person first. Honestly not sure what Zenbivy returns policy is for international orders but shipping to us was so expensive we didn’t bother trying to return the mattress.
We're so sorry to hear you are not happy with your mattress! We would love to help find a solution for you. Please send us an email at firstname.lastname@example.org.
-The Zenbivy Team
Had given up on comfortable side sleeping until I found this!
At home, I sleep like a pancake, about 2 hrs on a side before flipping over all night long. When tenting, in the past, that has meant I wake myself up every 2 hrs hoping that I can lull myself back to sleep while my 225 lb frame is digging into the ground through my previous mattress and cutting off my circulation. In desperation for a good night's rest, I had retired my tent for an RV many years ago. So, I was skeptical that anything would enable me to return to tent camping, but the Flex 3D Mattress *far* exceeded my expectations. Due to its size, I'm guessing most will use it for car camping. But it is much lighter and more compact than any other comparable mattress, and I can't wait to stuff it in my backpack and panniers. Thank you Zenbivy! I'm so glad I found your products and so grateful I'll be able to sleep well outdoors while leaving the RV at home.
We overland out of our Jeep across the USA in the back country. We had been using our queen size air mattress in our Gazell tent but I thought this would be nicer. Myself, I like it being longer than our queen size blow up mattress since I'm 6'2" tall. It's soft and really doesn't take much air to get it blown up. My wife on the other hand says it hurts her back and I tried all different air pressures in it trying to make her comfortable to no avail. I like it myself and it is nice and warm with our Zenbivy double size down quit and sheet. IDK what to think I like it but she doesn't. I guess I win some and loose some. I like it!!!