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 with rounded sides, 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.
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 about half the size of its recommended Dry Sack. (Ex: 7L compresses down to 3-4L, 10L down to 5L, etc)
Pairing your Core Quilt with one of our Core Sheets allows you to fully "tuck in" when temperatures drop. Hooking the quilt to the fitted sheet protects against drafts and keeps you (and your quilt) on the mattress. Plus, the hood acts as a cubby to keep your pillow in place all night long.
The Core Sheet Uninsulated features an uninsulated hood. It's lighter than the insulated version and perfect for warmer trips or combined with an insulated hooded jacket.
Includes the Core Sheet Uninsulated. Quilt, mattress, and accessories sold separately.
Zipperless Configuration — Each Core Sheet is equipped with perfectly placed hooks so you can configure your Core Quilt to it to best suit your needs. Fully clip in on cold nights or leave it partially open to allow a cooling draft.
Roomy, Integrated Hood — Tuck the corners of the Core Quilt up into the sheet's integrated hood to block drafts on cold nights. The hood also keeps your pillow from wandering away in the middle of the night!
Soft, Durable Fabric — To maximize comfort, the Core Sheet features our legendary soft sheet-like 50d Pongee.
Adjustable Strap — The Core Sheet features an adjustable clip strap on the back to keep the sheet snug and secure on your mattress.
20x72: 7 oz (0.20 kg)
25x72: 8 oz (0.22 kg)
25x77: 8 oz (0.22 kg)
30x80: 9 oz (0.25 kg)
Fits on mattresses up to...
20x72: 20” x 72” x 3.5"+ (51 x 183 x 9+ cm)
25x72: 26” x 72” x 3.5"+ (66 x 183 x 9+ cm)
25x77: 26” x 78” x 3.5"+ (66 x 198 x 9+ cm)
30x80: 30" x 80" x 3.5"+ (76 x 203 x 9+ cm)
See our size guide for specifics on sheet/mattress sizing
Liner: 50d Polyester Pongee, coating-free, 300T, cire, 62g/m2
Shell: 30d Nylon Taffeta, coating-free, 380T, cire, fluorocarbon-free DWR, 36g/m2
Clips: Nifco HND5L, HND7
Our sheets are designed to fit most standard size mattresses on the market—both rectangular AND tapered styles! They are available in 20x72, 25x72, 25x77, and 30x80 sizes. See our full size guide for specifics on sheet/mattress sizing.